54 Heavy Regiment RA was formed from a cadre of 78 Field Regiment RA(TA) in December 1939 at Sheffield. Personnel from 123 Field Regiment RA(TA) assisted in the formation. The Regiment was converted in February 1945 to 54 Super Heavy Regiment RA.
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.
| Dec 39 | Formed | Sheffield, Yorkshire, UK | |
| Dec 39 | Home Forces | UK | |
| Mar 41 |  |
Southern Command | Bournemouth, Dorset, UK |
| Sep 42 |  |
1 Army Group RA | UK |
| Nov 42 | |
1 Army Group RA | N Africa |
| Sep 43 | |
1 Army Group RA | Italy |
| Feb 45 | Became 54 Super Heavy Regiment |
Batteries
| Dec 39 | A, B, C, D |
| Mar 42 | P, Q, R, S |
| Jan 43 | 11, 12, 13, 14 |
Equipment
| Mar 41 | 9.2 inch Howitzers |