533 (Orkney) Coast Regiment RA(TA) was formed from part of the Orkney Heavy Regiment RA(TA), in September 1940. The Regiment was placed in suspended animation in January 1946 and was reconstituted as 430 (Orkney) Coast Regiment RA(TA) in January 1947.
| Sep 40 | Formed from part of Orkney Heavy Regiment | Orkney, UK |
| Sep 40 | Home Forces | Orkney, UK |
| Dec 42 | Flotta Fire Command | Flotta, Orkney, UK |
| Jan 46 | Suspended animation |
Batteries
| Sep 40 | A, B, C |
| Mar 41 | A, B, C, 176, 208 |
| Apr 41 | 133, 134, 135, 136, 137, 138, 139, 140, 176, 208 |
| May 41 | 133, 134, 135, 136, 137, 138, 139, 140, 169, 208, 223, 224, 246 |
| Jun 41 | 133, 135, 136, 166, 169, 208, 223, 224, 246 |
| Aug 41 | 133, 136, 166, 169, 208, 223, 224, 246 |
| Oct 41 | 133, 136, 166, 169, 199, 208, 223, 224, 246 |
| Apr 44 | 133, 136, 166, 169, 208, 224 |
| Jun 45 | 133, 136, 166, 169, 224 |
