The Under-Secretary of State for Air was a junior ministerial post in the United Kingdom Government, supporting the Secretary of State for Air in his role of managing the Royal Air Force. It was established on 10 January 1919, replacing the previous short-lived posts of Parliamentary Secretary to the Air Board and Parliamentary Secretary to the Air Council.
| Name | Entered office | Left office | |
|---|---|---|---|
| 1919 | 1919 | ||
| 1919 | 1920 | ||
| 1920 | 1921 | ||
| 1921 | 1922 | ||
| 1922 | 1924 | ||
| 1924 | 1924 | ||
| 1924 | 1929 | ||
| 1929 | 1931 | ||
| 1931 | 1937 | ||
| 1937 | 1938 | ||
| 1938 | 1941 | ||
| 20 July 1941 | 21 November 1944 | ||
| 21 November 1944 | 27 March 1945 | ||
| 27 March | 12 April 1945 | ||
| 12 April 1945 | 23 May 1945 | ||
| 26 May 1945 | 4 August 1945 | ||
| 1945 | 1946 | ||
| 1946 | 1950 | ||
| 1950 | 1951 | ||
| 1951 | 1952 | ||
| 1952 | 1955 | ||
| 1955 | 1957 | ||
| 1957 | 1959 | ||
| 1959 | 1959 | ||
| 1959 | 1962 | ||
| 1962 | 1964 |
| Name | Entered office | Left office | |
|---|---|---|---|
| 1964 | 1964 | ||
| 1964 | 7 January 1967 |
| Name | Entered office | Left office | |
|---|---|---|---|
| 1964 | 1964 | ||
| 1964 | 1966 | ||
| 1966 | 1968 | ||
| 1968 | 24 June 1970 | ||
| 24 June 1970 | 5 June 1973 | ||
| 5 June 1973 | 8 January 1974 | ||
| 8 January 1974 | 8 March 1974 | ||
| 8 March 1974 | 14 April 1976 | ||
| 14 April 1976 | 6 May 1979 | ||
| 6 May 1979 | 29 May 1981 |