British divisions in World War I

Infantry

Guards Division

1st Division

2nd Division

3rd Division

4th Division

5th Division

6th Division

7th Division

8th Division

9th (Scottish) Division

10th (Irish) Division

11th (Northern) Division

12th (Eastern) Division

13th (Western) Division

14th (Light) Division

15th (Scottish) Division

16th (Irish) Division

17th (Northern) Division

18th (Eastern) Division

19th (Western) Division

20th (Light) Division

21st Division

22nd Division

23rd Division

24th Division

25th Division

26th Division

27th Division

28th Division

29th Division

30th Division

31st Division

32nd Division

33rd Division

34th Division

35th Division

36th (Ulster) Division

37th Division

38th (Welsh) Division

39th Division

40th Division

41st Division

42nd (East Lancashire) Division

43rd (Wessex) Division

44th (Home Counties) Division

45th (2nd Wessex) Division

46th (North Midland) Division

47th (1/2nd London) Division

48th (South Midland) Division

49th (West Riding) Division

50th (Northumbrian) Division

51st (Highland) Division

52nd (Lowland) Division

53rd (Welsh) Division

54th (East Anglian) Division

55th (West Lancashire) Division

56th (1/1st London) Division

57th (2nd West Lancashire) Division

58th (2/1st London) Division

59th (2nd North Midland) Division

60th (2/2nd London) Division

61st (2nd South Midland) Division

62nd (2nd West Riding) Division

63rd (2nd Northumbrian) Division

63rd (Royal Naval) Division

64th (2nd Highland) Division

65th (2nd Lowland) Division

66th (2nd East Lancashire) Division

67th (2nd Home Counties) Division

68th (2nd Welsh) Division

69th (2nd East Anglian) Division

71st Division

72nd Division

73rd Division

74th (Yeomanry) Division

75th Division

Cavalry

1st Cavalry Division

2nd Cavalry Division

3rd Cavalry Division

1st Mounted Division - renamed 1st Cyclist Division in July 1916 then broken up in November 1916

2nd Mounted Division - broken up in January 1916

2/2nd Mounted Division - renamed 3rd Mounted Division in March 1916, 1st Mounted Division]] in July 1916, then The Cyclist Division]] in September 1917

4th Mounted Division - renamed 2nd Cyclist Division in July 1916, then broken up in November 1916

Yeomanry Mounted Division - renamed 1st Mounted Division in April 1918 then 4th Cavalry Division]] in July 1918