Post Campus of Long Island University, located in Brookville, New York, in NCAA Division II intercollegiate sports through the 2018–19 school year.

LIU Post has been a member of the ECC since 1989, when the league was established as the New York Collegiate Athletic Conference.

Teams for sports sponsored by both campuses were merged, and D-II athletes unable to make the D-I teams were allowed to either continue their athletic scholarships without competing or to be granted waivers that allowed them to transfer to another D-II school without having to sit out a season.

[6] In 1993, future NFL quarterback Perry Klein played for the C. W. Post Pioneers, throwing for 38 touchdowns.

LIU Post is the only college campus on Long Island to maintain an Equestrian Center for horseback riding.