119 Heavy Anti-Aircraft Regiment RA(TA) was formed at Ty Croes, Anglesey in December 1940. The Regiment was disbanded in May 1945 at Churchmead House, Datchet, Buckinghamshire.
| Dec 40 | Formed | Ty Croes, Anglesey, UK |
| Dec 40 | 26 Anti-Aircraft Brigade, 1 Anti-Aircraft Division | London, UK |
| April 41 | 46 Anti-Aircraft Brigade, 8 Anti-Aircraft Division | Falmouth, Cornwall, UK |
| Jun 41 | 46 Anti-Aircraft Brigade, 8 Anti-Aircraft Division | Bristol, UK |
| Dec 41 | 64 Anti-Aircraft Brigade, 8 Anti-Aircraft Division | UK |
| Jun 42 | 67 Anti-Aircraft Brigade, 11 Anti-Aircraft Division | UK |
| Jun 42 | 67 Anti-Aircraft Brigade, 9 Anti-Aircraft Division | UK |
| Sep 42 | Orkney & Shetland Defences (OSDEF) | Orkney, UK |
| Oct 44 | 40 Anti-Aircraft Brigade, 9 Anti-Aircraft Group | UK |
| Nov 44 | 5 Anti-Aircraft Brigade, 1 Anti-Aircraft Group | UK |
| Dec 44 | 102 Anti-Aircraft Brigade, 2 Anti-Aircraft Group | UK |
Batteries
| Dec 40 | 372, 377, 378 |
| Mar 41 | 372, 377, 378, 396 |
| Oct 41 | 372, 377, 378 |
| Nov 41 | 372, 377, 378, 464 |
| May 42 | 372, 377, 378 |
| Jul 42 | 372, 377, 378, 406 |
| Feb 44 | 372, 377, 378 |
