The 2020–21 Navy Midshipmen men's basketball team represented the United States Naval Academy during the 2020–21 NCAA Division I men's basketball season.

The team was led by tenth-year head coach Ed DeChellis, and played their home games at Alumni Hall in Annapolis, Maryland as a member of the Patriot League (South division).

The Midshipmen finished the season 15–3, 12–1 in Patriot League play, to finish in first place.

[1] The Midshipmen finished the 2019–20 season 14–16, 8–10 in Patriot League play, to finish in a tie for sixth place.

[2] They lost in the first round of the Patriot League tournament to Boston University.