About the course
The DPhil in Computer Science is an advanced research degree, awarded for significant (new) contribution to the existing body of knowledge in the field of computer science. You will work with world-class experts in their field. The DPhil normally takes three to four years of full-time study to complete.
The DPhil in Computer Science will introduce you to cutting edge research whilst studying in a beautiful, historic setting that is both student- and family-friendly. Supervision is available via the department's research themes together with cross-disciplinary research in areas such as linguistics, biology, medicine, quantum foundations and quantum computation.
The course combines individual supervision with a selection of lecture courses, transferable skills training and opportunities to participate in leading-edge research activities. The department recruits students from Oxford’s high-quality undergraduate and masters’ degrees, as well as nationally and internationally.
During your study at Oxford, the department hopes to share with you some of the excitement about the topics the department investigates, and of the understanding the department has gained from research into basic theory and by industrial collaboration. You will also be offered transferable skills training and are required to give presentations to your research groups.
The development of computer science at Oxford has been heavily supported by research grant funding from the government, EU and science foundations, as well as donations and sponsorship from the department's industrial partners. The department is committed to offering you the best supervision and to providing a stimulating research environment.
This is a full time course and you are expected to continue working outside of the University terms with an annual holiday of approximately eight weeks.
The allocation of graduate supervision for this course is the responsibility of the Department of Computer Science and it is not always possible to accommodate the preferences of incoming graduate students to work with a particular member of staff. Under exceptional circumstances a supervisor may be found outside the Department of Computer Science. In such circumstances there is likely to be a joint supervisor from within the department.
This is a full time course and you should meet regularly with your supervisor. In the case of students who require specific help to adjust to an academic programme or to a new range of skills, the supervisor will work with them to ensure that they have additional support.
During your first year you are expected to complete three pieces of assessed work. One piece comes from attendance at a taught course and taking the examination. A further piece of assessed work has to be a paper written during the course of one term, which may be publishable. The final piece can be from another taught course or a specially designed reading course, or you are also able to take three skills training courses and the three of these will count as one piece of assessed work. The work is assessed either by the supervisor or the examiner for a taught course. You are also expected to complete a literature review which should survey the state of the art in your chosen area. It should explain the background of the proposed research, the results that have been obtained by other researchers, and the conclusions that may be drawn. You are expected to give a clear and coherent account, demonstrating competence in organising ideas and presenting them in a scholarly manner.
All students will be initially admitted to the status of Probationer Research Student (PRS). Within a maximum of six terms as a PRS student (and normally by the fourth term) you will be expected to apply for transfer of status from Probationer Research Student to DPhil status.
A successful transfer of status from PRS to DPhil status will require the submission of a thesis proposal, and the satisfactory completion of some course work and term papers (the details are set out in the DPhil Student Handbook). Students who are successful at transfer will also be expected to apply for and gain confirmation of DPhil status within nine terms of admission, to show that your work continues to be on track.
Both milestones involve an interview with two assessors (other than your supervisor) and therefore provide important experience for the final oral examination.
You will be expected to submit a thesis after at most four years from the date of admission. To be successfully awarded a DPhil in Computer Science you will need to defend your thesis orally (viva voce) in front of two appointed examiners.
A good proportion of our DPhil students pursue a career in academia moving on to becoming post-doctoral researchers, and subsequently to university lecturers and professors. Many others join industry or build startups.
Changes to this course and your supervision
The University will seek to deliver this course in accordance with the description set out in this course page. However, there may be situations in which it is desirable or necessary for the University to make changes in course provision, either before or after registration. The safety of students, staff and visitors is paramount and major changes to delivery or services may have to be made in circumstances of a pandemic (including Covid-19), epidemic or local health emergency. In addition, in certain circumstances, for example due to visa difficulties or because the health needs of students cannot be met, it may be necessary to make adjustments to course requirements for international study.
Where possible your academic supervisor will not change for the duration of your course. However, it may be necessary to assign a new academic supervisor during the course of study or before registration for reasons which might include illness, sabbatical leave, parental leave or change in employment.
Other courses you may wish to consider
If you're thinking about applying for this course, you may also wish to consider the courses listed below. These courses may have been suggested due to their similarity with this course, or because they are offered by the same department or faculty.
Entry requirements for entry in 2022-23
Proven and potential academic excellence
As a minimum, applicants should hold or be predicted to achieve the equivalent of the following UK qualifications:
- a first-class or a strong upper second-class undergraduate degree with honours in a four-year undergraduate degree (to the level of a master's degree) in a relevant subject, or
- a first-class or a strong upper second-class undergraduate degree with honours in a three-year BSc/BA degree and a master's degree with distinction in a relevant subject.
For the qualifications above, relevant subjects typically include computer science or mathematics.
Students require either a distinction in a master's or a four-year undergraduate degree. A four-year sandwich degree with one year spent in industry is not an acceptable equivalent.
Please note that entrance to the course is very competitive and most successful applicants have a first-class degree or the equivalent.
For applicants with a degree from the USA, the minimum GPA sought is 3.6 out of 4.0.
If your degree is not from the UK or another country specified above, visit our International Qualifications page for guidance on the qualifications and grades that would usually be considered to meet the University’s minimum entry requirements.
GRE General Test scores
No Graduate Record Examination (GRE) or GMAT scores are sought.
Other qualifications, evidence of excellence and relevant experience
- You are not required to submit publications with your application, but if you have publications then please give details in your CV/résumé.
- It would be expected that graduate applicants would be familiar with the recent published work of their proposed supervisor.
If your ability to meet the entry requirements has been affected by the COVID-19 pandemic (eg you were awarded an unclassified/ungraded degree) or any other exceptional personal circumstance (eg other illness or bereavement), please refer to the guidance on extenuating circumstances in the Application Guide for information about how to declare this so that your application can be considered appropriately.
English language requirement
This course requires proficiency in English at the University's standard level. If your first language is not English, you may need to provide evidence that you meet this requirement. The minimum scores required to meet the University's standard level are detailed in the table below.
|Test||Minimum overall score||Minimum score per component|
|IELTS Academic (Institution code: 0713)||7.0||6.5|
TOEFL iBT, including the 'Home Edition'
(Institution code: 0490)
*Previously known as the Cambridge Certificate of Advanced English or Cambridge English: Advanced (CAE)
†Previously known as the Cambridge Certificate of Proficiency in English or Cambridge English: Proficiency (CPE)
Your test must have been taken no more than two years before the start date of your course. Our Application Guide provides further information about the English language test requirement.
You will be required to supply supporting documents with your application, including references and an official transcript. See 'How to apply' for instructions on the documents you will need and how these will be assessed.
Performance at interview
Interviews are normally held as part of the admissions process.
Candidates are considered against the academic ability criteria and also the research proposal or statement. If you meet the academic criteria and there is a supervisor interested in your research then you will be invited for interview. For candidates in the UK the interview is likely to be held in the Department of Computer Science; if you are overseas the interview will be by Skype (with video preferably) or telephone.
There will be a minimum of two interviewers. Interviews will be held between mid-January and mid-February for applicants who apply by the January deadline and by early April for those who apply at the March deadline.
Any offer of a place is dependent on the University’s ability to provide the appropriate supervision for your chosen area of work. Please refer to the ‘About’ section of this page for more information about the provision of supervision for this course.
How your application is assessed
Your application will be assessed purely on academic merit and potential, according to the published entry requirements for the course. The After you apply section of this website provides further information about the academic assessment of your application, including the potential outcomes. Please note that any offer of a place may be subject to academic conditions, such as achieving a specific final grade in your current degree course. These conditions may vary depending upon your individual academic circumstances.
Students are considered for shortlisting and selected for admission without regard to gender, marital or civil partnership status, disability, race, nationality, ethnic origin, religion or belief, sexual orientation, age or social background. Whether you have secured funding will not be taken into consideration when your application is assessed.
Admissions panels and assessors
All recommendations to admit a student involve the judgement of at least two members of the academic staff with relevant experience and expertise, and must also be approved by the Director of Graduate Studies or Admissions Committee (or equivalent within the department).
Admissions panels or committees will always include at least one member of academic staff who has undertaken appropriate training.
After an offer is made
If you receive an offer of a place at Oxford, your offer letter will give full details of your offer and any academic conditions, such as achieving a specific final grade in your current degree course. In addition to any academic conditions which are set, you will be required to meet the following requirements:
If you are offered a place, you will be required to complete a Financial Declaration in order to meet your financial condition of admission.
Disclosure of criminal convictions
In accordance with the University’s obligations towards students and staff, we will ask you to declare any relevant, unspent criminal convictions before you can take up a place at Oxford.
Academic Technology Approval Scheme (ATAS)
Some postgraduate research students in science, engineering and technology subjects will need an Academic Technology Approval Scheme (ATAS) certificate prior to applying for a Tier 4 visa. Further information can be found on our Tier 4 (General) Student visa page. For some courses, the requirement to apply for an ATAS certificate may depend on your research area.
The department will offer you IT provision in the form of a desktop PC, or screen and keyboard if using your own laptop. This is connected to the department’s network. If you require fast parallel computation, you may be able to access the machine clusters at the Oxford e-Research Centre.
Oxford University IT Services runs introductory courses throughout the year. These courses will be especially helpful if you have had less opportunity of hands-on experience with computers. They will also help you to explore facilities available at the University of Oxford which, although possibly not required for your research, may be of interest to you.
As a DPhil student you will have an office shared with other students and housed within your research group wherever possible.
The Department of Computer Science Library contains books, monographic series, journals, technical reports and past theses covering the main research interests of the department. You are also able to access other relevant libraries elsewhere in the University such as the Radcliffe Science Library, the Whitehead Library (at the Mathematical Institute for numerical analysts and formal mathematicians) and the Engineering Science Library (especially for those interested in robotics and machine vision).
The Department of Computer Science houses lecture theatres and seminar rooms in which most of the university lectures in computer science take place.
The department has kitchens on each floor and a central common room where you can meet informally. There is an active social committee organising events for staff, students and families.
The Computer Science Graduate Society (COGS) is an organisation within the Department of Computer Science that provides organised events and outings for the graduate students and research assistants within the lab. The Oxford Women in Computer Science Society (OxWoCS) aims to support and promote women in computer science. The society organises events throughout the year, including weekly coffee meetings, talks by distinguished female speakers, and industry sponsored events.
The University expects to be able to offer around 1,000 full or partial graduate scholarships across the collegiate University in 2022-23. You will be automatically considered for the majority of Oxford scholarships, if you fulfil the eligibility criteria and submit your graduate application by the relevant December or January deadline. Most scholarships are awarded on the basis of academic merit and/or potential.
For further details about searching for funding as a graduate student visit our dedicated Funding pages, which contain information about how to apply for Oxford scholarships requiring an additional application, details of external funding, loan schemes and other funding sources. Please ensure that you visit individual college websites for details of college-specific funding opportunities using the links provided on our college pages.
Further information about funding opportunities for this course can be found on the department's website.
Annual fees for entry in 2022-23
Annual Course fees
Further details about fee status eligibility can be found on the fee status webpage.
Course fees are payable each year, for the duration of your fee liability (your fee liability is the length of time for which you are required to pay course fees). For courses lasting longer than one year, please be aware that fees will usually increase annually. For details, please see our guidance on changes to fees and charges.
Course fees cover your teaching as well as other academic services and facilities provided to support your studies. Unless specified in the additional information section below, course fees do not cover your accommodation, residential costs or other living costs. They also don’t cover any additional costs and charges that are outlined in the additional information below.
Following the period of fee liability, you may also be required to pay a University continuation charge and a college continuation charge. The University and college continuation charges are shown on the Continuation charges page.
There are no compulsory elements of this course that entail additional costs beyond fees (or, after fee liability ends, continuation charges) and living costs. However, please note that, depending on your choice of research topic and the research required to complete it, you may incur additional expenses, such as travel expenses, research expenses, and field trips. You will need to meet these additional costs, although you may be able to apply for small grants from your department and/or college to help you cover some of these expenses.
In addition to your course fees, you will need to ensure that you have adequate funds to support your living costs for the duration of your course.
For the 2022-23 academic year, the range of likely living costs for full-time study is between c. £1,215 and £1,755 for each month spent in Oxford. Full information, including a breakdown of likely living costs in Oxford for items such as food, accommodation and study costs, is available on our living costs page. When planning your finances for any future years of study in Oxford beyond 2022-23, you should allow for an estimated increase in living expenses of 3% each year.
All graduate students at Oxford belong to a department or faculty and a college or hall (except those taking non-matriculated courses). If you apply for a place on this course you will have the option to express a preference for one of the colleges listed below, or you can ask us to find a college for you. The Colleges section of this website provides information about the college system at Oxford, as well as factors you may wish to consider when deciding whether to express a college preference. Please note that ‘college’ and ‘colleges’ refers to all 45 of the University’s colleges, including those designated as Permanent Private Halls (PPHs).
For some courses, the department or faculty may have provided some additional advice below to help you to decide. Whatever you decide, it won’t affect how the academic department assesses your application and whether they decide to make you an offer. If your department makes you an offer of a place, you’re guaranteed a place at one of our colleges.
The following colleges accept students on the DPhil in Computer Science:
How to apply
Before you apply, a good starting point is to look at the research currently being done in the department and the profiles of academic staff. Academic staff profiles contain information on their research interests and will help you identify potential supervisors.
You can contact potential supervisors directly but remember they are very busy and may not reply immediately. You should be brief and include some information about your background, your research interests and any relevant experience. You might like to introduce yourself by explaining why their work interests you enough to motivate you to apply to study with them for the next three or four years and you may have read some of their publications.
You should name at least one potential supervisor where requested in the application form, up to a maximum of three.
The set of documents you should send with your application to this course comprises the following:
Your transcripts should give detailed information of the individual grades received in your university-level qualifications to date. You should only upload official documents issued by your institution and any transcript not in English should be accompanied by a certified translation.
More information about the transcript requirement is available in the Application Guide.
A CV/résumé is compulsory for all applications. Most applicants choose to submit a document of one to two pages highlighting their academic achievements and any relevant professional experience.
Research proposal/statement of research interests:
A maximum of 1,000 words
You may submit either a research proposal comprising a detailed outline of your intended research or, if you are not yet ready to submit a full proposal, you should submit a statement of research interests, in English, describing the general area of research in which you are interested. You should summarise the research in this area that you are aware of, referring to existing papers where appropriate. You could also describe a research problem and your initial ideas on research work towards solving this or open problems.
You should include your relevant skills and experience, your reasons for applying to Oxford, and list some of the principal reasons why you consider yourself a strong applicant.
It is helpful to identify a likely supervisor. You should look at the webpages of potential supervisors working in your area of interest and even read some of their publications. You should make it clear why the potential supervisor's work interests you and why they would be the best supervisor for you.
You should be aware that a statement of research interests will not commit you to carry out the exact research work you have described and it is expected that your interests may evolve and change over the course of study.
The overall word count should include any bibliography.
If possible, please ensure that the word count is clearly displayed on the document.
This will be assessed for:
- your reasons for applying
- the coherence of the proposal
- the originality of the project
- evidence of motivation for and understanding of the proposed area of study
- the ability to present a reasoned case in English
- the feasibility of successfully completing the project in the time available for the course (a maximum four years)
- commitment to the subject, beyond the requirements of the degree course
- preliminary knowledge of research techniques
- capacity for sustained and intense work
- reasoning ability
- ability to absorb new ideas, often presented abstractly, at a rapid pace.
You should be aware that the statement of research interests will not commit you to carry out the exact research work you have described and we would expect your interests to evolve and change over the course of study.
Your proposal should focus on your ideas for research rather than personal achievements, interests and aspirations. You do not need to include your MSc dissertation.
References/letters of recommendation:
Three overall, generally two academic and one either academic or professional
Whilst you must register three referees, the department may start the assessment of your application if two of the three references are submitted by the course deadline and your application is otherwise complete. Please note that you may still be required to ensure your third referee supplies a reference for consideration.
Generally, you should provide two academic references and a third reference which may be either professional or academic. However, if you have been away from higher education for a long time, you may instead provide one academic reference and two professional references.
Your references will support intellectual ability, academic achievement, motivation, and (where appropriate) ability to work in a group.
Start or continue an application
Step 1: Read our guide to getting started, which explains how to prepare for and start an application.
Step 2: Check that you meet the Entry requirements and read the How to apply information on this page.
Step 3: Check the deadlines on this page and the deadline information in our Application Guide. Plan your time to submit your application well in advance - we recommend two or three weeks earlier.
Step 4: Check if you're eligible for an application fee waiver. Application fee waivers are available for:
- UK applicants from low-income backgrounds who meet the eligibility criteria;
- residents in a country on our low-income countries list (refer to the eligibility criteria);
- current Oxford graduate taught students applying for readmission to an eligible course; and
- additional applications to selected research courses that are closely related to your first application.
Step 5: Start your application using the relevant link below. As you complete the form, consult our Application Guide for advice at each stage. You'll find the answers to most common queries in our FAQs.