1999 Big East Conference baseball tournament

The 1999 Big East Conference baseball tournament was held at Mercer County Waterfront Park in Trenton, New Jersey. This was the fifteenth annual Big East Conference baseball tournament, and first to be held outside the state of Connecticut. The won the tournament championship and claimed the Big East Conference's automatic bid to the 1999 NCAA Division I baseball tournament.

Format and seeding
The Big East baseball tournament was a 6 team double elimination tournament in 1999. The top six regular season finishers were seeded one through six based on conference winning percentage only.

Jack Kaiser Award
Marc DesRoches was the winner of the 1999 Jack Kaiser Award. DesRoches was a senior pitcher for Providence.