3 Heavy Anti-Aircraft Regiment RA was re-designated as 3 Anti-Aircraft Regiment RA from 3 Anti-Aircraft Brigade RA in May 1938. It was re-designated as Heavy Anti-Aircraft in August 1940. The Regiment was captured at Singapore in February 1942 and was placed in suspended animation. It was reconstituted in April 1946 from the disbanding 128 Heavy Anti-Aircraft Regiment and in April 1947 it became 82 Heavy Anti-Aircraft Regiment RA.
| May 38 | Malaya Command | Malaya |
| Feb 42 | Captured | Singapore |
Batteries
| Jan 39 | 11, 29, 30 |
Equipment
| Feb 42 | 11 Battery 6 x 3.7 inch guns, 29 & 30 Batteries 8 x 3.7 inch guns each 11 Battery – Ayer Hitam, 29 & 30 Batteries – Singapore City |
