The 2017–18 Navy Midshipmen men's basketball team represented the United States Naval Academy during the 2017–18 NCAA Division I men's basketball season. The Midshipmen, led by seventh-year head coach Ed DeChellis, played their home games at Alumni Hall in Annapolis, Maryland as members of the Patriot League. They finished the season 20–12, 11–7 in Patriot League play to finish in a tie for third place. They lost in the quarterfinals of the Patriot League tournament to Holy Cross.