1978 NCAA Division II men's ice hockey tournament
| Teams | 4 |
|---|---|
| Finals site | |
| Champions | Merrimack Warriors (1st title) |
| Runner-up | Lake Forest Foresters (1st title game) |
| Semifinalists |
|
| Winning coach | J. Thom Lawler (1st title) |
| MOP | Jim Toomey (Merrimack) |
| Attendance | 2,409 |
The 1978 NCAA Men's Division II Ice Hockey Tournament involved 4 schools playing in single-elimination play to determine the national champion of men's NCAA Division II college ice hockey. A total of 4 games were played, hosted by American International College.
Merrimack, coached by Thom Lawler, won the national title with a 12–2 victory in the final game over Lake Forest.
Jim Toomey, of Merrimack, was named the Most Outstanding Player and was the high scorer of the tournament with seven points (1 goal, 6 assists).