List of ship decommissionings in 1988
The list of ship decommissionings in 1988 includes a chronological list of all ships decommissioned in 1988.
| Operator | Ship | Flag | Class and type | Fate | Other notes | |
| 6 February | ' | Museum ship | To Australian National Maritime Museum | |||
| 30 March | ' | Wrecked at Hamburg | ||||
| 17 May | Stena Line | ' | Ferry | Transferred to Lion Ferry | Rebuilt into Lion Queen | |
| 25 June | ' | Unique submarine | Decommissioned | Entered the Navy's Nuclear Powered Ship and Submarine Recycling Program on 5 January 1995. On 1 April 1996, the hulk ceased to exist. | ||
| 26 June | ' | Decommissioned | Scuttled in Bass Strait | |||
| 7 July | ' | Decommissioned | Sold to Pakistan, renamed | |||
| 31 August | ' | Decommissioned | Sold to Pakistan, renamed | |||
| 13 October | SF Line | ' | Cruiseferry | Sold to Stena Line | Renamed Stena Nordica | |
| 1 December | ' | Decommissioned | Sold to the Turkish Navy for cannibalization | |||
| December | Swansea-Cork Ferries | ' | Ferry | End of charter, returned to Polferries | Renamed Rogalin |