The 85th Brigade was a formation of the British Army. It was originally formed from regular army battalions serving away from home in the British Empire. It was assigned to the 28th Division and served on the Western Front and the Macedonian Front during the First World War. The Brigade was temporarily attached to the 3rd Division between February and April 1915.
The infantry battalions did not all serve at once, but all were assigned to the brigade during the war.
| style= | Rank | style= | Name | style= | Date appointed | style= | Notes |
|---|---|---|---|---|---|---|---|
| Brigadier-General | A. J. Chapman | 24 December 1914 | |||||
| Brigadier-General | C. E. Pereira | 18 May 1915 | Wounded 26 May 1915 | ||||
| Captain | C. J. Deverell | 26 May 1915 | Acting | ||||
| Lieutenant-Colonel | C. W. Compton | 29 May 1915 | Acting | ||||
| Brigadier-General | C. E. Pereira | 10 June 1915 | Wounded 27 September 1915 | ||||
| Lieutenant-Colonel | A. C. Roberts | 27 September 1915 | Acting | ||||
| Brigadier-General | B. C. M. Carter | 29 September 1915 | |||||
| Brigadier-General | K. M. Davie | 24 October 1917 | |||||
| Lieutenant-Colonel | W. Y. Miller | 23 September 1918 | Acting | ||||
| Brigadier-General | R. E. Solly-Flood | 27 September 1918 | |||||
| Lieutenant-Colonel | W. Y. Miller | 25 February 1919 | Acting | ||||
| Brigadier-General | F. C. Nisbet | 26 March 1919 | Temporary | ||||
| Brigadier-General | R. E. Solly-Flood | 5 May 1919 | |||||
| Lieutenant-Colonel | A. H. Yatman | 19 September 1919 | Acting | ||||
| Brigadier-General | F. C. Nisbet | 22 September 1919 | Temporary | ||||
| Lieutenant-Colonel | A. H. Yatman | 25 September 1919 | Acting | ||||
| Brigadier-General | R. E. Solly-Flood | 4 November 1919 | |||||
| Lieutenant-Colonel | A. B. Gosset | 29 November 1919 | Acting | ||||
| Lieutenant-Colonel | O. H. Delano-Osborne | 17 December 1919 | Acting | ||||
| Lieutenant-Colonel | A. B. Gosset | 18 January 1920 | Acting | ||||
| Lieutenant-Colonel | O. H. Delano-Osborne | 29 January 1920 | Acting | ||||
| Brigadier-General | A. T. Beckwith | 29 February 1920 | |||||
| colspan=4 | |||||||
| Colonel | A. E. Glasgow | 25 September 1922 | Temporary | ||||
| Colonel-Commandant | A. T. Beckwith | 6 October 1922 |