Graduate Admissions & Aid


If you have a bachelor's or master's degree in biology, biochemistry, microbiology, molecular biology, genetics, engineering, or chemistry, you can apply directly to our Ph. D program. The OSU Microbiology Graduate Program focuses on Ph. D candidates, for whom full financial support is provided.

Classes begin in August. To ensure full consideration, all applicants must have an application on file by November 30 (supplemental application materials may be accepted through December 31, if needed). The university's official application deadline for Autumn Semester admission is January 6 (applications will be reviewed beginning on December 1). All supplemental application materials must be received by this date in order to participate in our regular on-campus interview process. We do not require the submission of GRE scores for admission to the Microbiology PhD program at Ohio State. All international applicants whose native language is not English and who have not previously earned a U.S. degree must also pass the TOEFL examination*. Visit the OSU Admissions Office web site for more information.

Applicants may be considered for a University Fellowship if they meet the minimum cumulative GPA of 3.6. The decision to nominate an applicant is determined by the Microbiology Graduate Studies Committee. The final decision to award an applicant a fellowship they have been nominated for is decided by the Graduate School.

For a full list of our instructions and competitive information, please follow the application instructions in the PDF provided below. 

Application Instructions

If you need additional information, call us at 614-292-2301 or you may also request additional information by email from the Graduate Program Coordinator at
After we receive your completed application, we will make an admission decision and inform you of our decision in writing as soon as possible. Information about financial support will be included in the letter of admission.

In keeping with Ohio State's commitment to affirmative action, the Department of Microbiology welcomes applications from members of underrepresented groups and encourages all applicants to visit our campus.

We Guarantee Financial Aid

All qualified Ph.D. students are guaranteed financial support from the department throughout their first year of our graduate program, at which time you will be expected to have joined a lab. Students must remain in good academic standing and below 180 credit hours to be eligible for support. Graduate Teaching Associates (GTAs) spend no more than 20 hours each week teaching undergraduate courses in microbiology and biology. We offer year-round opportunities for support in the form of graduate associateships or fellowships. The university also offers a variety of enrichment student fellowships. To be considered for any of the fellowship opportunities, you must have a completed application on file by November 30.
For students of Diverse Backgrounds.
Helpful links:

**Please note that the Department of Microbiology does not offer conditional admission to students missing the TOEFL iBT scores; the department does not accept the IELTS. The GRE is only required for students with cumulative GPAs under 3.0 per University Policy.

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