The 2015 Big Ten Men's Lacrosse Tournament took place April 30 to May 2 at Capital One Field at Byrd Stadium in College Park, Maryland. The winner of the tournament received the Big Ten Conference's automatic bid to the 2015 NCAA Division I Men's Lacrosse Championship. Four teams competed in the inaugural Big Ten Conference Men's Lacrosse Tournament in a single elimination format. The seeds were based upon the teams' regular season conference record. Johns Hopkins won the tournament, beating Ohio State 13-6.