The 2018 Big Ten men's basketball tournament was the postseason men's basketball tournament for the Big Ten Conference of the 2017–18 NCAA Division I men's basketball season. It was held from February 28 through March 4, 2018 at Madison Square Garden in New York City. Due to the Big East's use of that venue for their conference tournament, the Big Ten tournament took place one week earlier than usual, ending the week before Selection Sunday.