533 (Orkney) Coast Regiment RA (TA) was formed from part of the Orkney Heavy Regiment RA (TA), in September 1940. It was responsible for the southern defences in Flotta Fire Command. The Regiment was placed in suspended animation in January 1946. 533 (Orkney) Coast Regiment RA (TA) was reconstituted as 430 (Orkney) Coast Regiment RA (TA) in January 1947.
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.
| Sep 40 | Formed from part of Orkney Heavy Regiment | Orkney, UK | |
| Sep 40 |  |
OSDEF | Orkney, UK |
| Dec 42 | Flotta Fire Command | Flotta, Orkney, UK | |
| Jan 46 | Suspended animation |
Batteries
| Sep 40 | A, B (Hoxa), C |
| Mar 41 | A, B, C, 176, 208 |
| Apr 41 | 133 (Stanger Head), 134 (Buchanan), 135 (Neb), 136 (Gate), 137 (Balfour), 138 (Holm), 139 (Burray), 140 (Cara), 176, 208 |
| May 41 | 133, 134, 135, 136, 137, 138, 139, 140, 169 (Balfour), 208 (Hoxa), 223, 224, 246 (Cara) |
| Jun 41 | 133, 135, 136, 166 (Buchanan), 169, 208, 223, 224 (Holm), 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 |