DART-Europe allows you to search and access for free over 375,000 dissertations and theses from over 500 European universities. DART is the abbreviation for Digital Archive of Research Theses.
A reminder that the McGill Library also subscribes to ProQuest Dissertations & Theses, which provides references to dissertations and theses from around the world, going back to 1743. The full text is available for all those published since 1997, along with full text for selected works prior to 1997.
Finally, visit eScholarship@McGill for theses and dissertations written by McGill University students.