The 2009–10 Saint Mary's Gaels men's basketball team represented Saint Mary's College of California in the 2009–10 college basketball season. This was head coach Randy Bennett's ninth season at Saint Mary's. The Gaels compete in the West Coast Conference and played their home games at the McKeon Pavilion. They finished conference play with a record of 11–3 to place second. They were the champions of the 2010 West Coast Conference Men's Basketball Tournament and received the conference's automatic bid to the 2010 NCAA Men's Division I Basketball Tournament where they were a 10 seed in the Midwest Region. Their first round win over 7 seed Richmond was the school's first tournament win since beating Idaho State in 1959. They continued their success by knocking off 2 seed and AP #9 Villanova t