The 2009–10 Atlantic Coast Conference men's basketball season was the 57th season for the league.

Duke and Maryland shared the regular season crown, while Duke won the ACC Tournament championship.

The 2010 Atlantic Coast Conference Men's Basketball Tournament, a part of the 2009-10 NCAA Division I men's basketball season, took place from March 11–14, 2010, at the Greensboro Coliseum

Greensboro Coliseum

The Greensboro Coliseum Complex is an entertainment complex located in College Hill neighborhood of Greensboro, North Carolina. Opening in 1959, the arena was one of the largest venues in the South, with a seating capacity of over 7,000...

 in Greensboro, North Carolina

North Carolina

North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...

. The championship game matched Duke against Georgia Tech

2009–10 Georgia Tech Yellow Jackets men's basketball team

The 2009–10 Georgia Tech Yellow Jackets men's basketball team represented Georgia Institute of Technology in the 2009–10 college basketball season. This was Paul Hewitt's tenth season as head coach. The Yellow Jackets compete in the Atlantic Coast Conference and played their home games at...

. Duke won 65–61, winning its 9th ACC championship in 12 years, and the most titles in ACC history at 18. As conference champion, Duke received the ACC

Atlantic Coast Conference

The Atlantic Coast Conference is a collegiate athletic league in the United States. Founded in 1953 in Greensboro, North Carolina, the ACC sanctions competition in twenty-five sports in Division I of the National Collegiate Athletic Association for its twelve member universities...

's automatic bid

Automatic bid

Automatic bid is a term generally used to describe a bid or berth to a tournament, granted based on performance in prior competition, and not based on subjective picking...

 to the 2010 NCAA Tournament

2010 NCAA Men's Division I Basketball Tournament

The first and second round games were played at the following sites:*March 18 / 20*March 25 / 27*March 26 / 28Each regional winner advanced to the Final Four, held on April 3 and 5 in Indianapolis, Indiana at Lucas Oil Stadium, hosted by the Horizon League and Butler University, as per the NCAA's...

. Other teams to go to the tournament were Maryland, Wake Forest, Georgia Tech, Florida State, and Clemson. North Carolina made the NIT post season tournament final, but lost there to Dayton. In the Big Ten- ACC Challenge,this was the first year the ACC lost, losing 6–5 overall.