The 2018 Big Ten Men's Lacrosse Tournament was held May 3 and May 5 at in Ann Arbor, Michigan. The winner of the tournament received the Big Ten Conference's automatic bid to the 2018 NCAA Division I Men's Lacrosse Championship. Four teams from the Big Ten conference competed in the single elimination event. The seeds were determined based upon the teams' regular season conference record. Johns Hopkins won the tournament, beating Maryland 13-10.