1990 Atlantic 10 Men's Basketball Tournament

The 1990 Atlantic 10 Men's Basketball Tournament was played from March 3 to March 5, 1990 and March 8, 1990, at the Palestra in Philadelphia, Pennsylvania, except for the final that was played at McGonigle Hall in Philadelphia. The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1990 NCAA Men's Division I Basketball Tournament. Temple University won the tournament. No other teams received bids to the NCAA Tournament. The top six teams in the conference received first-round byes.

Bracket

	First Round March 3 Palestra, Philadelphia, PA					Quarterfinals March 4 Palestra					Semifinals March 5 Palestra					Final March 8 McGonigle Hall, Philadelphia
						1	Temple	61
						9	Duquesne	50
	8	Saint Joseph's	70
	9	Duquesne	96
											1	Temple	65
										5	Rutgers	57
						4	Rhode Island	79
						5	Rutgers	80
																1	Temple	53
																6	Massachusetts	51
						2	Penn State	83
						7	George Washington	72
	7	George Washington	85
	10	St. Bonaventure	77
											2	Penn State	59
										6	Massachusetts	64
						3	West Virginia	55
						6	Massachusetts	78