The Northeast Conference Men's Basketball Tournament is the conference championship tournament in basketball for the Northeast Conference. The tournament has been held every year since the 1981–82 season when the Northeast Conference was established. It is an eight-team single-elimination tournament and seeding is based on regular season records. After the quarterfinals, the teams are shuffled so the highest remaining seed plays the lowest remaining seed in the semifinals. The tournament winner receives the conference's automatic bid to the NCAA basketball tournament.
Robert Morris is the program that has won the most NEC Tournament Championships (8) followed by LIU (6) and Fairleigh Dickinson (6). LIU Brooklyn has been the only program to win three consecutive tournament championships, from 2011–2013. Robert Morris has won back-to-back championships on three occasions (1982-83, 1989-90 and 2009-10), the only other programs to win back-to-back championships, Marist and Rider, are no longer members of the NEC. Of the current conference members (11 programs), four have not won a championship, they are St. Francis Brooklyn, Sacred Heart, Bryant and Merrimack.
^From 1981 to 2019, Long Island University was represented in the Northeast Conference by its Brooklyn campus, known for athletic purposes as "Long Island" through the 2012–13 season and "LIU Brooklyn" from 2013–14 forward. After the 2018–19 season, LIU merged the athletic programs of its Brooklyn and Post campuses into a single program, now competing as the LIU Sharks, that inherited the NCAA Division I and Northeast Conference memberships of the Brooklyn campus.