PhD Computational Sciences

The objective of the PhD in Computational Sciences is to produce interdisciplinary scholars who are capable of tackling emerging problems in the sciences and humanities through investigation, advanced research and application of current computer technologies.

The PhD in Computational Sciences is a full­time, three-­year program (9 semesters, or 36 months) during which students will complete the Technical and Communication Research Methodology course (CIS*6890) and any additional graded courses or modules assigned by their Advisory Committee. Students will also give two public seminars, pass a qualifying exam, conduct research and successfully defend a written dissertation at the final oral examination. Our PhD will prepare students for both academia and industry.

Applicants also have the option to apply for a collaborative specialization in One Health while pursuing a thesis-based PhD degree in computational sciences.

All future applicants are encouraged to explore faculty research interests and get in touch with prospective Graduate Faculty Supervisors. An established School of Computer Science (SoCS) supervsior and Application Discipline co-supervisor must be established PRIOR to applying to the PhD.CSCI program.

Tips for Finding a Supervisor

How to Apply

Please apply online at Applying to Guelph.

Application Deadlines

Available spaces in the PhD program fill quickly, so it is in your best interest to submit your application and all required supporting documentation early. Our application deadline dates for each semester of enrollment are as follows:*

  • Spring 2023: February 1, 2023
  • Fall 2023: June 1, 2023
  • Winter 2024: October 1, 2023

*The application deadlines are for both Domestic and International applicants. We encourage International applicants to apply a minimum of nine months in advance of these deadlines to ensure study permits can be processed in time for admission. Please see the Office of Graduate & Postdoctoral Studies Recommendations for International Applicants for suggested application timeline.

Please note: Application processing times may vary and take approximately two to three months for decision.


Applicants must meet the minimum admission requirements of both the University and the School of Computer Science (SoCS). For admission to the PhD in Computational Sciences program, entrants require the following:

  1. Thesis-based master's degree: Admission to the PhD program normally requires a recognized thesis-based master’s degree. Applicants possessing a recognized course-based master's degree may be considered if the applicant demonstrates an outstanding academic record and research accomplishments through publications in scholarly journals and/or conferences. 
  2. A minimum B average: Applicants are required to have a minimum average of 75% ('B') during the previous two years of full-time university study for an accredited university graduate degree. For information on international degree admission requirements, please see: International Credential Evaluation and select country. Admission average is calculated using the last 2 years of university-level study.
  3. Two faculty supervisors: Each PhD candidate will conduct thesis research by working closely with two chosen faculty thesis supervisors, a School of Computer Science (SoCS) supervisor and an Application Discipline (AD) supervisor, who will share equal responsibility in advising the student. At least one of the Co-Advisors must be Regular Graduate Faculty at the University of Guelph. A chosen SoCS supervisor and AD co-supervisor must be established PRIOR to applying to the PhD.CSCI program.

    You can review SoCS Faculty Areas of Research to assist you in finding a suitable SoCS graduate faculty supervisor. Please also review Tips for Finding a Supervisor to assist you in communicating effectively with our SoCS faculty.
  4. English proficiency test: An English proficiency test will be required for any applicant whose first language is not English.

In addition to the Faculty of Graduate Studies Requirements, the School of Computer Science (SOCS) requires all of the documentation noted on the application page including:

  1. Academic Transcripts
  2. A current resume or CV (including publications)
  3. A Statement of Interest (maximum 1500 words):
    • The applicant must identify their potential supervisors (School of Computer Science Advisor and Application Discipline Advisor) and explain their choice
    • They should describe the general area of research in which they are interested
    • The area must be at the crossroads between computer science and another discipline (the “application discipline”) in the sciences, social sciences, humanities, etc.
    • They may also describe a specific research problem in the area and their initial ideas on how to approach it
    • They should clearly explain the importance and interdisciplinary nature of the area or problem
    • They should summarize the related research and refer to publications where appropriate
    • As an appendix (not included in the 1500-word limit):
      • An applicant without a master’s or bachelor’s degree in computer science should highlight their computational knowledge and experience (e.g., computer science courses taken; use of Matlab, Mathematica, R, Maple, Weka)
      • An applicant without a master’s or bachelor’s degree in the application discipline should highlight their knowledge and experience in that discipline
      • The applicant should list any other reasons why they consider themselves a strong applicant
  4. Three Academic References
  5. A test of English proficiency is required of all applicants whose first language is not English. The English language requirements for the PhD program are higher than other programs.  Required scores are shown below:
  • Paper-based TOEFL: 600
  • Internet-based TOEFL: 100, speaking and writing 25, at least 21 in each category
  • IELTS: 7.0, at least 6.5 for each component
  • MELAB: 90, speaking 3, no score lower than 80
  • CAEL: 70, writing and speaking 70, no score lower than 60
  • University of Guelph English Language Certificate at the Advanced Level
  • The proof of English proficiency requirement may be waived in exceptional circumstances (e.g. Applicants who have studied full-time for two years in a country where English is the native language AND in a university where English is the language of instruction).

*Please note, the test may not be more than two years old. The proof of English proficiency requirement may be waived in exceptional circumstances. For example, applicants may be eligible for an English Waiver who have conferred a degree in a country where English is the native language AND in a university where English is the language of instruction (e.g. Canada, UK, USA, Australia, etc.). School of Computer Science Graduate Admissions Committee approval is required.

 The GRE is NOT required

Fees & Funding

For more information, please visit Guelph Graduate Fees or fees, funding and scholarships.

For more information and requirements, please visit the PhD in Computational Sciences Graduate Calendar, or download our Program Brochure.

Please note, we will not be able to pre-evaluate any documents, and must receive all the required documentation before your application can be evaluated. If you need further assistance, please contact our Graduate Program Assistant.