516 (Thames & Medway) Coast Regiment RA(TA) was formed from a part of the Thames & Medway Heavy Regiment RA(TA), in July 1940. RHQ converted to 516 Garrison Regiment RA(TA) in December 1944 and as 614 Infantry Regiment RA(TA) in January 1945. RHQ was placed in to suspended animation in July 1946 and was reconstituted as 415 (Thames & Medway) Coast Regiment RA(TA) in January 1947.
| Jul 40 | Formed from part of Thames & Medway Heavy Regiment | |
| Jul 40 | Home Forces | UK |
| Nov 41 | Sheerness Fire Command | Sheerness, Kent, UK |
| Dec 44 | Became 516 Garrison Regiment RA(TA) |
Batteries
| Jul 40 | A, B, C, D |
| Dec 40 | A, B, C, D, 357 |
| Apr 41 | 220, 284, 285, 286, 287, 288 |
| Sep 41 | 220, 284, 285, 286, 287, 288, 289, 334 |
| Dec 41 | 220, 285, 286, 287, 288, 289, 334 |
| Mar 43 | 167, 220, 287, 288, 289, 334 |
| Apr 43 | 167, 220, 287, 288, 295, 334 |
| Apr 44 | 167, 168, 286, 287, 288, 295, 334 |
