181 (Mixed) Heavy Anti-Aircraft Regiment RA(TA) was formed at Cardiff in October 1942. The Regiment was disbanded in November 1944 at Belmont, Christchurch, Newport.
| Oct 42 | Formed | Cardiff, UK |
| Oct 42 | 45 Anti-Aircraft Brigade | South Wales, UK |
| Mar 45 | Disbanded | Newport, Monmouthshire, UK |
Batteries
| Dec 42 | 587 (Mixed), 612 (Mixed) |
| Jan 43 | 587 (M), 612 (M), 621 (M) |
| Apr 43 | 587 (M), 612 (M), 621 (M), 668 (M) |
| May 43 | 587 (M), 612 (M), 621 (M) |
