Ph.D. Admissions Requirements and Application Process

For entry into the Ph.D. program starting Fall 2025, the deadline for receipt of a completed application (including letters of reference, any exam scores, and transcripts) is January 1, 2025.

We welcome applications from a variety of science and engineering majors. Successful students have entered the program with Bachelors degrees in Chemistry, Biochemistry, Biology, Molecular Biology, Psychology, Neuroscience, Chemical Engineering, Computer Engineering, Marine Biology, Microbiology, and pre-medical and pre-health sciences degrees, among others.

We utilize a holistic application review that takes into account multiple factors, including field of interest, when making admissions decisions.

Our program is unable to provide application fee waivers. Domestic applicants can apply for a waiver through the OSU Graduate School. International applicants can check with their local EducationUSA advising office to see if there are educational opportunity programs or local recommendations to fund study in the United States.

Applicants with a foreign BPharm degree without research experience are generally not competitive for this program.

See our FAQ page for commonly asked questions about our program and the application process.

Minimum Academic Requirements

Our program follows the minimum academic requirements set by the OSU Graduate School. Please visit Graduate Admissions - Minimum Academic Requirements for more information.

Documents Needed for Application Review:

Unofficial transcripts are accepted for initial application review. If admitted, applicants will be required to provide official transcripts.

The GRE is not required for admission to our program.

International students will need to submit a qualifying English language proficiency exam score.

Applicants should plan to have three letters of reference submitted with the application. Letter writers will be sent instructions for uploading their letters to the application portal. More information about selecting letter writers can be found here.

  • Personal Statement

You'll answer a series of questions within the application that ask you to describe your goals, education and research background, and preparation for graduate education. The answers to these questions create your 'personal statement'. An additional statement is not required as a separate document upload.

International Applicant Requirements

International applicants must meet a minimum English language proficiency requirements for regular admission or qualify for a waiver from English language testing as outlined below . The OSU Graduate School accepts scores from TOEFL, IELTS and Duolingo. 

  • TOEFL PBT - 550
  • TOEFL iBT - 80 (Minimum score of 18 on each sub-section.)
  • IETLS - 6.5
  • Duolingo - 110 (Must include sub-scores)


Waived from English Language Testing

The English language proficiency exam requirement is waived for applicants who hold either citizenship or a baccalaureate or graduate degree from a recognized or accredited institution in any of the following countries:

Anguilla, Antigua and Barbuda, Australia, The Bahamas, Barbados, Belize, Bermuda, British Overseas Territories, British Virgin Islands, Botswana, Cameroon, Canada, Cayman Islands, Dominica, Eswatini, Fiji, The Gambia, Ghana, Grenada, Guyana, Ireland, Jamaica, Kenya, Kiribati, Lesotho, Liberia, Malawi, Montserrat, Namibia, Nigeria, New Zealand, Rwanda, Saint Lucia, Saint Kitts and Nevis, Saint Vincent and the Grenadines, Sierra Leone, Singapore, South Africa, Tanzania, Tonga, Trinidad and Tobago, Turks and Caicos Islands, Uganda, United Kingdom, Zambia, Zimbabwe.

Ready to apply?

Start Your Application