List of ship decommissionings in 1979
The list of ship decommissionings in 1979 includes a chronological list of all ships decommissioned in 1979.
| Operator | Ship | Flag | Class and type | Fate | Other notes | |
|---|---|---|---|---|---|---|
| 2 January | Svea Line (Finland) | Fennia |  Finland | ferry | Chartered to SAGA Linjen | |
| January | Tor Line | Tor Scandinavia |  Sweden | Cruiseferry | Chartered to Holland Expo | |
| 1 February | SAGA Linjen | Fennia |  Finland | ferry | End of charter, returned to Svea Line (Finland) | |
| 26 February | Holland Expo | Tor Scandinavia |  Sweden | Cruiseferry | End of charter, returned to Tor Line | |
| February | Stena Line | Stena Oceanica |  Sweden | ferry | Rebuilt into Stena Saga | |
| 26 April | Rederi AB Slite | Diana |  Sweden | ferry | Sold to Oy Vaasa-Umeå Ab | Renamed Botnia Express; chartered for Rederi AB Slite | 
| 15 June | Rederi AB Slite | Botnia Express |  Finland | ferry | Entered traffic with Oy Vaasa-Umeå Ab | Under charter from Oy Vaasa-Umeå Ab | 
| September | Rederi AB Slite | Diana II av Slite |  Sweden | Cruiseferry | Renamed Diana II | Continued in same traffic | 
| September | Italia Crociere | Galileo Galilei |  Italy | Cruise ship | Laid up; sold to Chandris Fantasy Cruises in 1983 | Renamed Galileo |