The Delaware Fightin' Blue Hens men's lacrosse team represents the University of Delaware in NCAA Division I men's college lacrosse.

Delaware advanced to the semifinals (Final Four), defeating #2 Virginia before losing to Johns Hopkins 8–3.

In the program's history, Delaware has produced several notable players, including NCAA Player of the Year John Grant, Jr. among the world's best lacrosse players, Anthony DiMarzo among the all-time leaders in Division I career assists, Jordan Hall of the Major League Lacrosse Rochester Rattlers, Matt Alrich, Chris Collins, Keevin Galbraith, and Curtis Dickson.

In 2022, the Delaware Blue Hens upset the #2 ranked Georgetown Hoyas in the first round of the NCAA Tournament before losing to Cornell 10-8 in the Quarterfinals.

Conference tournament champion †NCAA canceled 2020 collegiate activities due to the COVID-19 virus.