To find an OSU thesis or dissertation use ScholarsArchive@OSU

• Use a keyword search, enter your department or college name.  For example, Biochemistry and Biophysics, or Public Health.
• Refine your results to theses or dissertations on the left-hand side of the results page. Find the Resource Type heading (scroll almost to the end of the refining options), expand the box, then choose the Masters Thesis or Dissertation link depending on your interest.
• To find recent theses or dissertations, next refine your results on the left-hand side of the results page using the Commencement Year heading. Expand the box, then enter your preferred date range. For example 2017-2020. Then click "limit."
• From this focused list of results, click on a thesis or dissertation title. 
• To view the full text, select the Download PDF link on the left side of the page.

These resources also index theses and dissertations.

ProQuest Dissertation Express: find citations here, then request it from OSU Libraries' Interlibrary Loan.

1. PQDT Open Searches open access theses and dissertations from the ProQuest database. It is a subset of Dissertation Abstracts.
2. Google Scholar indexes many open access theses and dissertations from institutions and authors that have published them as open access. However, filtering to just dissertations and theses is not an option at this time.
3. Check the OSU Libraries database list to see if a database in your discipline indexes dissertations (many do) or ask your subject librarian for help selecting the best option.
4. Networked Digital Library of Theses and Dissertations (NDLTD) Recommends several search engines for access to dissertations and theses.
5. Search The Center for Research Libraries (CRL) catalog to view citations of over 800,000 dissertations from countries outside the US and Canada. Where available, request full-text from the CRL through Interlibrary Loan.