Joseph S. Stauffer Library or Stauffer is the main social science and humanities library of Queen's University in Kingston, Ontario, Canada.

Construction was completed in 1994 at a cost of C$42 million, funded partially by the Ontario government and the Joseph S. Stauffer Foundation.

The library is the largest building on the university campus, with Postmodern architecture referencing the Neo-Gothic style by architecture firm Kuwabara Payne McKenna Blumberg Architects (KPMB).

It won the 1997 Governor General's Award for Architecture.

The Queens University Library is a contributor to the Open Content Alliance