1978 NCAA Division I lacrosse tournament

1978 NCAA Division I men's lacrosse tournament
Dates	May 17–27, 1978
Teams	8
Finals site	Rutgers Stadium Piscataway, New Jersey
Champions	Johns Hopkins (2nd title)
Runner-up	Cornell (4th title game)
Semifinalists	Maryland (8th Final Four) Navy (5th Final Four)
Winning coach	Henry Ciccarone (1st title)
MOP	Mike O’Neill, Johns Hopkins
Attendance[1]	13,527 finals 28,587 total
Top scorer	Mike O’Neill, Johns Hopkins (15 goals)
NCAA Division I men's tournaments «1977 1979»

The 1978 NCAA Division I lacrosse tournament was the eighth annual tournament hosted by the National Collegiate Athletic Association to determine the team champion of men's college lacrosse among its Division I programs at the end of the 1978 NCAA Division I lacrosse season.

Johns Hopkins defeated Cornell in the championship game, 13–8, using a three-goal performance by midfielder Bob DeSimone. This was the Blue Jays' second national title. Before this loss, Cornell had come into the game on a 42-game unbeaten streak and had not lost a game since May 24, 1975, a 15–12 setback to Navy in the 1975 NCAA tournament semifinals.

The championship game was hosted at Rutgers Stadium on the campus of Rutgers University in Piscataway, New Jersey. The game grew a crowd of 13,527 fans.