2019–20 Niagara Purple Eagles men's ice hockey season

The 2019–20 Niagara Purple Eagles men's ice hockey season was the 24th season of play for the program, the 22nd at the Division I level, and the 10th season in the Atlantic Hockey conference. The Purple Eagles represented Niagara University and were coached by Jason Lammers, in his 3rd season.

On March 12, 2020, Atlantic Hockey announced that the remainder of the conference tournament was cancelled due to the coronavirus pandemic.

Roster
As of September 3, 2019.

Schedule and Results
!colspan=12 style=";" | Exhibition

!colspan=12 style=";" | Regular Season

!colspan=12 style=";" | Atlantic Hockey Tournament
 * - align="center" bgcolor="#e0e0e0"
 * colspan=12|Tournament Cancelled