Formed in 1900 as 27 Brigade-Division RFA and designated 27 Brigade Royal Field Artillery in 1903. It became 27 Field Brigade RA in June 1924. 27 Field Regiment RA was re-designated from 27 Field Brigade in May 1938 on a two battery basis. It re-organised as three batteries in October 1940. It became a Jungle Field Regiment in October 1943, reverting to the Field role in April 1944. Post war 27 Field Regiment RA was re-designated 25 Field Regiment RA in April 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.
| 3 Sep 39 |  |
Eastern Command | Colchester, Essex, UK |
| Nov 39 |  |
1 Corps | France |
| Jun 40 | Home Forces | UK | |
| Jul 42 |  |
25 Indian Division | India |
| Jan 43 | Became Jungle Field Regiment | ||
| Feb 44 | |
25 Indian Division | Burma (Myanmar) |
| Apr 44 | Returned to Field role | ||
| Apr 45 |  |
26 Indian Division | Burma (Myanmar) |
| May 45 |  |
12 Army | Burma (Myanmar) |
Batteries
| June 24 | 21, 24, 37, 47 |
| May 38 | 21/24, 37/47 |
| Jul 42 | 21, 24, 37/47 |
Equipment
| 1939 | 24 x 18/25 pdr Guns, Morris C8 FAT |
| Jun ? 40 | 4 x Railway Guns (9.2 or 12 inch) |
| Nov 43 | 21 & 24 Battery Mortars, 37/47 Battery 3.7 inch Howitzers |
| Sep 44 | 25 pdr |
| Feb 45 | 37/47 Battery – 2 x Z craft (4 x 25 pdr on special river boat) |