The 2009–10 Atlantic 10 Conference men's basketball season marks the 34th season of Atlantic 10 Conference basketball.

Preseason

In the preseason, talk centered around the University of Dayton, who returned four starters from a 27–8 team that advanced to the second round of the 2009 NCAA tournament. Dayton forward Chris Wright was named to the John R. Wooden Award preseason top 50 candidate list on August 19, the only Atlantic 10 player so honored. Wright also was named to the Naismith Award watch list on October 29. In other preseason recognition, Jason Duty of Duquesne and Yves Mekongo of La Salle were named to the 30-man preseason candidate list for the Lowe's Senior CLASS Award. In a vote of league coaches and media, Dayton was named the preseason favorite to win the league. Dayton also received national recognition as the Flyers were ranked in both preseason polls – #21 in the AP Poll and #22 in the ESPN/USA Today Coaches' poll.

Atlantic 10 Preseason Poll

Preseason All-A10 Team

First Team Second Team Third Team

Preseason A10 All-Defensive Team

Preseason A10 All-Rookie Team

Regular season

Postseason

Atlantic 10 tournament

Beginning this season, the Atlantic 10 men's basketball tournament changed formats so that first-round games would be played on the home court of the higher-seeded team, then the tournament would move to Boardwalk Hall in Atlantic City. In 2009, all rounds were held at the same site.

Conference awards & honors

Weekly awards

Atlantic 10 Players of the Week Throughout the conference season, the Atlantic 10 offices name a player and rookie of the week.

All-Conference Awards

Atlantic 10 Men's Basketball All-Conference Teams

First Team Second Team Third Team Honorable Mention Rookie Team Defensive Team Academic Team

Rankings