1991 Atlantic 10 men's basketball tournament

The 1991 Atlantic 10 Men's Basketball Tournament was played from March 2 to March 4, 1991 and March 7, 1991, at the Palestra in Philadelphia, Pennsylvania, except for the final that was played at Rec Hall in University Park, Pennsylvania. The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1991 NCAA Men's Division I Basketball Tournament. Penn State University won the tournament. Temple and Rutgers also received bids to the NCAA Tournament. Freddie Barnes of Penn State was named the tournament's Most Outstanding Player. The top six teams in the conference received first-round byes.

Bracket

	First Round Saturday, March 2 Palestra, Philadelphia, PA					Quarterfinals Sunday, March 3 Palestra					Semifinals Monday, March 4 Palestra					Final Thursday, March 7 Rec Hall, University Park, PA
						1	Rutgers	87
						8	Saint Joseph's	90*
	8	Saint Joseph's	82*
	9	Rhode Island	65
											8	Saint Joseph's	82
											4	George Washington	84*
						4	George Washington	84*
						5	Massachusetts	83
																4	George Washington	75
																3	Penn State	81
						2	Temple	56
						7	West Virginia	53
	7	West Virginia	93
	10	St. Bonaventure	86
											2	Temple	50
											3	Penn State	52
						3	Penn State	83
						6	Duquesne	64

* - Overtime