2009–10 Michigan State Spartans men's basketball team

The 2009–10 Michigan State Spartans men's basketball team represented Michigan State University in the 2009–10 NCAA Division I men's basketball season. Their head coach was Tom Izzo who was in his 15th year. The Spartans played their home games at the Breslin Center in East Lansing, Michigan and were members of the Big Ten Conference. MSU finished the season 28–9, 14–4 in Big Ten play to earn a share of the Big Ten regular season championship for the 12th time in school history. They lost to Minnesota in the quarterfinals of the Big Ten tournament. The Spartans received an at-large bid to the NCAA tournament as a No. 5 seed, their 13th consecutive trip to the NCAA Tournament under Izzo. They defeated New Mexico State, Maryland, Northern Iowa, and Tennessee to advance to the Final Four. In the Final Four, the Spartans' sixth trip to the Final Four under Izzo, they lost to Butler.