78 Anti-Tank Regiment RA was formed at Sandecote School, Parkstone in July 1942 with three batteries. A fourth battery was added in June 1943. In December 1943 the Regiment was disbanded at Middlesbrough, Yorkshire.
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.
| Jul 42 | Formed | Parkstone, Dorset, UK | |
| Jul 42 | Home Forces | UK | |
| Feb 43 |  |
47 Infantry Division | UK |
| Dec 43 | Disbanded | Middlesbrough, Yorkshire, UK |
Batteries
| Jul 42 | R, S, T |
| Jan 43 | 124, 125, 126 |
| Jun 43 | 124, 125, 126, 339 |