Olin Library may refer to:

Libraries named after Stephen Olin:

• Olin Library at Wesleyan University

Libraries named after John M. Olin:

• Olin Library at Cornell University Library
• Olin Library at Washington University Libraries

Libraries named after Franklin W. Olin:

• The library at Olin College of Engineering
• Olin Library at Rollins College
• F. W. Olin Library at Mills College
• Olin Science Library at Colby College