The 2026 Big Sky Conference men's basketball tournament, popularly referred to as "Starch Madness", is the upcoming postseason tournament for the Big Sky Conference, to be held March 7–11, 2026, at Idaho Central Arena in Boise, Idaho. It will be the 51st edition of the tournament, which debuted in 1976. The winner will receive the Big Sky's automatic bid to the 2026 NCAA tournament.