The list of ship decommissionings in 1999 includes a chronological list of all ships decommissioned in 1999.
| Operator | Ship | Flag | Class and type | Fate | Other notes | ||
|---|---|---|---|---|---|---|---|
| 14 January | Type 22 frigate | Sold to Romania | Renamed | ||||
| 17 March | Submarine recycling program | ||||||
| 23 March | Type 22 frigate | Sunk as target | |||||
| 1 May | Type 22 frigate | Sold for scrap in 2001 | |||||
| 1 June | Submarine recycling program | ||||||
| 1 July | Submarine recycling program | ||||||
| 1 July | Submarine recycling program | ||||||
| 9 July | Nuclear ship recycling program | ||||||
| 4 August | Type 22 frigate | Sunk as target | |||||
| 15 October | Sunk as dive wreck in 2001 | ||||||
| 31 December | Type 42 destroyer | Sold for scrap in 2000[1] |