The 2020–21 Army Black Knights men's ice hockey season was the 118th season of play for the program, the 111th at the Division I level, and the 18th season in the Atlantic Hockey conference.

The Black Knights represented the United States Military Academy in the 2020–21 NCAA Division I men's ice hockey season and were coached by Brian Riley, in his 17th season.

As of October 17, 2020.

[1] Source: [4] Statistics through March 14, 2021.

USCHO did not release a poll in week 20.