163 (Mixed) Heavy Anti-Aircraft Regiment RA(TA) was formed at Wimbledon in June 1942. The Regiment was considered a new War Formed unit in January 1947 and re-designated in the April as 101 (M) Heavy Anti-Aircraft Regiment RA.
| Jun 42 | Formed | Wimbledon, London, UK |
| Jun 42 | Home Forces | UK |
Batteries
| Jun 42 | 350 (Mixed), 538 (Mixed), 553 (Mixed) |
| Sep 42 | 350 (M), 538 (M), 553 (M), 565 (M) |
| Sep 44 | 350 (M), 538 (M), 553 (M) |
| Mar 45 | 350 (M), 505 (M), 538 (M) |
