1978–79 NHL transactions

The following is a list of all team-to-team transactions that have occurred in the National Hockey League during the 1978–79 NHL season. It lists what team each player has been traded to, signed by, or claimed by, and for which player(s) or draft pick(s), if applicable.

May

 * 1) Trade completed on October 28, 1978.

June

 * 1) Trade completed on June 15, 1978.
 * 2) Trade completed on August 28, 1978.
 * 3) Chicago had the option of the 2nd-rd pick in 1979 or 1980 NHL Entry Draft.  They selected in the 1980 draft.

January

 * 1) Atlanta relocated to Calgary for the 1980-81 NHL season.