The 1987 Big East baseball tournament was held at Muzzy Field in Bristol, Connecticut. This was the third Big East baseball tournament, and was won by the . As a result, Seton Hall earned the Big East Conference's automatic bid to the 1987 NCAA Division I baseball tournament.
The 1987 Big East baseball tournament was a 4 team double elimination tournament. The top two teams from each division, based on conference winning percentage only, earned berths in the tournament. Each division winner played the opposite division's runner up in the first round.
The following players were named to the All-Tournament team.
Mo Vaughn was the winner of the 1987 Jack Kaiser Award. Vaughn was a designated hitter for Seton Hall.