74 Medium Regiment RA was formed from a cadre from 144 Field Regiment RA(TA)with two batteries in January 1940 at Preston Park, Brighton. It moved with 1 Army to North Africa in December 1942. From there, it went to Italy in September 1943. 74 Medium Regiment RA was disbanded in December 1945.
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.
| Jan 40 | Formed from cadre 144 Field Regiment | Brighton, Sussex, UK | |
| Jan 40 | Home Forces | UK | |
| Dec 42 |  |
1 Army | N Africa |
| Jul 43 |  |
Allied Forces HQ | N Africa |
| Sep 43 |  |
2 Army Group RA | Salerno, Italy |
| May 44 | |
2 Army Group RA | Cassino, Italy |
Batteries
| Jan 40 | A, B |
| Mar 42 | P, Q |
| Jan 43 | 99, 100 |
Equipment
| Mar 45 | 5.5 inch gun |