1978 WHA playoffs

The 1978 WHA playoffs was the postseason tournament of the World Hockey Association's 1977–78 season. With the abolishing of divisions, six of the eight teams would reach the playoffs. However, the league went for a unique format where there would three Quarterfinal playoffs and that the highest-seeded winner from those rounds would advance directly to the Avco Cup Final. The sixth WHA tournament, it was the only one with six teams in competition with each other. This was the first and only playoff appearance for the Birmingham Bulls. The quarterfinals between Houston and Quebec featured the final games of the Houston Aeros (who dissolved in the offseason) along with what ended up being the last postseason overtime game (with Houston and Quebec each winning one in overtime). The defending champion Quebec Nordiques fell in the Semifinal. For the fourth time in franchise history, the Winnipeg Jets advanced to the Avco Cup Final, where they played the New England Whalers, who last made the Avco Cup Final in 1973. The Winnipeg Jets won the Avco Cup over the New England Whalers for their second championship, with Bob Guindon being named WHA Playoffs MVP.