1986 Big East men's basketball tournament

The 1986 Big East men's basketball tournament took place at Madison Square Garden in New York City, from March 5 to March 8, 1986. Its winner received the Big East Conference's automatic bid to the 1986 NCAA tournament. It is a single-elimination tournament with four rounds. St. John's had the best regular season conference record and received the #1 seed.

St. John's defeated Syracuse in the championship game 70–69, to claim its second Big East tournament championship.

Awards
Most Valuable Player: Dwayne Washington, Syracuse

All Tournament Team
 * Walter Berry, St. John's
 * Mark Jackson, St. John's
 * Harold Pressley, Villanova
 * Rony Seikaly, Syracuse
 * Dwayne Washington, Syracuse
 * Reggie Williams, Georgetown