The 1999 NECBL season was the sixth season of the New England Collegiate Baseball League. The league expanded to eight franchises with the addition of the Rhode Island Gulls, the league's second franchise in the New England state of Rhode Island.
In the semifinal playoff rounds, Danbury defeated Keene 2-1, and Middletown defeated Rhode Island (Reds) 2-1. In the final round, Middletown defeated Danbury 3-1 to win their third consecutive NECBL championship.[1]