The 2018–19 Saint Peter's Peacocks men's basketball team represented Saint Peter's University in the 2018–19 NCAA Division I men's basketball season.

They played their home games at Yanitelli Center in Jersey City, New Jersey as members of the Metro Atlantic Athletic Conference, and were led by first-year head coach Shaheen Holloway.

8 seed Marist in the first round 71–68 in overtime before falling to No.

After the end of the season, head coach John Dunne left Saint Peter's to become the head coach at Marist.

[1] On April 10, 2018, Seton Hall assistant coach Shaheen Holloway was hired as his replacement.