Jean Potvin trades
| Cleveland Barons acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Jean-Paul Parise | January 10, 1978 | Wayne Merrick |  |
| Jean Potvin | 1978 4th round pick (cancelled by Barons-North Stars merger in 1978) | |||
| 1978 4th round pick (not exercised due to Barons-North Stars merger in 1978) | future considerations (Darcy Regier) | |||
| Philadelphia Flyers acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Terry Crisp | March 5, 1973 | Jean Potvin | |
| player to be named later (Glen Irwin) | ||||
| Los Angeles Kings acquire | Date | Philadelphia Flyers acquire | ||
|---|---|---|---|---|
 | Serge Bernier | January 28, 1972 | Bill Flett | |
| Jim Johnson | Eddie Joyal | |||
| Bill Lesuk | Ross Lonsberry | |||
| Jean Potvin | ||||