Allan Chapman (1897 – 7 January 1966) was a Scottish Unionist Party politician. He was elected at the 1935 general election as Member of Parliament (MP) for the Rutherglen constituency in Lanarkshire. He held the seat during the war years, but at the 1945 general election he was defeated by the Labour Party candidate Gilbert McAllister.
In the war-time coalition government, he was Assistant Postmaster-General from March 1941 to March 1942, and then Under-Secretary of State for Scotland until the coalition government was dissolved in May 1945. In the subsequent caretaker government he then shared the post with Thomas Dunlop Galbraith until the new Labour Government took office at the end of July.
| Parliament of the United Kingdom | ||
|---|---|---|
| Preceded by Herbert James Moss |
Member of Parliament for Rutherglen 1935–1945 |
Succeeded by Gilbert McAllister |
| Political offices | ||
| Preceded by Charles Waterhouse |
Assistant Postmaster-General 1941–1942 |
Succeeded by Robert Grimston |
| Preceded by Joseph Westwood |
Under-Secretary of State for Scotland from May 1945, jointly with Thomas Dunlop Galbraith 1942–July 1945 |
Succeeded by George Buchanan and Tom Fraser |