160 (Mixed) Heavy Anti-Aircraft Regiment RA(TA) was formed at Fort Fareham in June 1942. It became a non-mixed Regiment in August 1945. The Regiment was considered a new War Formed unit in January 1947 and re-designated in the April as 103 Heavy Anti-Aircraft Regiment RA.
| Jun 42 | Formed | Fareham, Hampshire, UK |
| Jun 42 | 35 Anti-Aircraft Brigade, 5 Anti-Aircraft Division | Southern England |
| Sep 42 | 35 Anti-Aircraft Brigade, 2 Anti-Aircraft Group | Southern England |
| Aug 45 | Re-organised as non mixed regiment |
Batteries
| Jul 42 | 458 (Mixed), 556 (Mixed) |
| Feb 43 | 458 (M), 508 (M), 523 (M), 529 (M), 556 (M) |
| Dec 43 | 458 (M), 508 (M), 523 (M), 556 (M) |
| Sep 44 | 458 (M), 508 (M), 523 (M) |
