6 Brigade Royal Horse Artillery was absorbed into 8 Brigade Royal Field Artillery in 1920. Re-formed in November 1940 as 6 Regiment Royal Horse Artillery with three batteries. It assumed a Light Anti-Aircraft role in 1 Armoured Division in May 1946. In October 1947 it converted to 6 Field 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.
| Nov 40 | Formed from cadre from 5 RHA | Bulwick, Northamptonshire, UK | |
| Dec 40 |  |
9 Support Group | UK |
| Jun 42 | |
9 Armoured Division | UK |
| Jul 44 | Home Forces | UK |
Batteries
| Dec 40 | N, O |
| Mar 41 | N, O, P |