546 Coast Regiment RA was formed as 8 Coast Artillery Group RA at Cromer with five batteries, in October 1940. It was re-designated 546 Coast Regiment RA in June 1941. RHQ was disbanded in April 1944 and the batteries dispersed.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Oct 40 | Formed as 8 Coast Artillery Group | Cromer, Norfolk, UK | |
| Oct 40 |  |
Eastern Command | Cromer, Norfolk, UK |
| Jun 41 | Became 546 Coast Regiment | UK | |
| Apr 44 | Disbanded |
Batteries
| Oct 40 | 322, 323, 352 (Sheringham), 353, 384 |
| Apr 41 | 228 (Cley Eye), 322, 323, 352, 353, 384 |
| May 41 | 228, 352, 353, 384 |
| Aug 41 | 191, 228, 352, 353, 384 |
| Sep 41 | 228, 352, 353, 384 |
| Nov 41 | 197 (Mundesley), 228, 352, 353, 384 |
| May 42 | 197, 324 (Cromer), 352, 353, 384 |
| Feb 43 | 174, 197, 219, 228, 324, 352, 353 |
| May 43 | 174, 197, 219, 228, 324, 353 |