The Army Black Knights men's lacrosse team represents the United States Military Academy in National Collegiate Athletic Association (NCAA) Division I men's lacrosse competition. During the team's 92-year history, it has won eight national championships and made fifteen postseason NCAA tournament appearances. The team currently holds the fifth-most wins of any team, with an all-time record of 705–332–7.

College lacrosse is played by student-athletes at colleges and universities in the United States and Canada. In both countries, men's field lacrosse and women's lacrosse are played at both the varsity and club levels. College lacrosse in Canada is sponsored by the Canadian University Field Lacrosse Association (CUFLA) and Maritime University Field Lacrosse League (MUFLL), while in the United States, varsity men's and women's lacrosse is governed by the National Collegiate Athletic Association (NCAA), National Junior College Athletic Association (NJCAA) and National Association of Intercollegiate Athletics (NAIA). There are also university lacrosse programs in the United Kingdom sponsored by British Universities and Colleges Sport (BUCS) and programs in Japan.