The following sources give references to theses produced in institutions around the world. Some may also be available to download immediately.
References for British PhD theses. Includes some full-text, and the ability to request theses for scanning where not already available (a cost might apply).
No password required, although you need to register with the service to order a thesis - Find out about ordering a British thesis via EThOS
References to doctoral and masters dissertations and theses in all subjects from around the world. Plus full-text of over 1 million titles. Covers 1637 onwards.
You may find that databases in your subject area also index theses. Find out which ones are relevant for you by consulting our list of subject databases.
British theses found via these sources can usually be obtained via the British Library's EThOS service.
References for British PhD theses. Includes some full-text, and the ability to request theses for scanning where not already available (a cost might apply).
No password required, although you need to register with the service to order a thesis - Find out about ordering a British thesis via EThOS
Overseas theses can be requested via our inter-library loans service, but these might be hard to obtain and will incur a higher than usual charge.
Finding out about theses and dissertations in progress is not easy but the following sources might help.