| Tournament details | |
|---|---|
| Teams | 8 |
| Final positions | |
| Champions | Montreal Canadiens |
| Runner-up | St. Louis Blues |
The 1968 Stanley Cup playoffs, to decide the 1968 championship of the National Hockey League (NHL) was the first after the expansion from six to twelve teams. The playoff system was thus expanded from a four-team to an eight-team tournament, and was designed so that four of the new expansion teams would qualify for the postseason.
The defending champion Toronto Maple Leafs did not qualify and a new champion would be crowned. The Montreal Canadiens would defeat the St. Louis Blues in four straight to win the Stanley Cup.