Formed in March 1900 as 46 Brigade-Division. Became 46 Brigade Royal Field Artillery in 1903 and 35 Brigade RFA in August 1913. It was re-designated as 25 Brigade RFA in November 1922 becoming 25 Field Brigade RA in June 1924. The Regiment was re-designated from 25 Field Brigade to 25 Field Regiment RA in May 1938. It was re-organised on a two battery basis by April 1940. It was reduced to a cadre in September 1942 and reformed in March 1944. Post war 25 Field Regiment RA was re-designated as 29 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.
| Sep 39 | 9 Indian Infantry Brigade | Jhansi, India | |
| Sep 40 |  |
4 Indian Division | Cairo, Egypt |
| Feb 41 | |
4 Indian Division | Eritrea |
| Mar 41 | |
4 Indian Division | Keren, Eritrea |
| May 41 | |
4 Indian Division | Egypt |
| Jun 41 | 11 Indian Infantry Brigade | N Africa | |
| Nov 41 | |
4 Indian Division | Gazala, Libya |
| Sep 42 | Reduced to a cadre | ||
| Mar 44 | Reformed | Retford, Nottinghamshire, UK | |
| Jun 44 |  |
2 Army | NW Europe |
| Oct 44 | 8 Army Group RA Under command 3 Infantry Division |
Meijel, Holland |
Batteries
| Feb 17 | 12, 25, 31, 58 |
| Apr 40 | 31/58 (Kirkee-Maiwand), 12/25 |
| Mar 44 | 12/25, 31 (Kirkee), 58 (Maiwand) |
Equipment
| Jan 41 | 18 pdr, Karrier Spider tractors |
| Nov 41 | 25 pdr |