| John Allmond Marsh | |
| Birthname: | John Allmond Marsh |
| Birth Date: | 1894 3, df=yes |
| Birth Place: | Guelph, Ontario |
| Spouse: | Marjorie Campbell[1] |
| Riding: | Hamilton West |
| Predecessor: | Herbert Earl Wilton |
| Successor: | Colin W. G. Gibson |
| Term Start: | March 1937 |
| Term End: | March 1940 |
| Profession: | business executive |
| Party: | National Government Conservative (1867–1942) |
John Allmond Marsh (6 March 1894 – 5 November 1952) was a Conservative member of the House of Commons of Canada. He was born in Guelph, Ontario and became a business executive.
Marsh attended public school at Hamilton, then Peterboro Collegiate Institute, then the University of Toronto. He was an alderman for Hamilton, Ontario from 1936 to 1937.
He was first elected to Parliament at the Hamilton West riding in a by-election on 22 March 1937. After completing the remaining months of the 18th Canadian Parliament, Marsh became a candidate under theNational Government party banner but was defeated in the 1940 election by Colin W. G. Gibson of the Liberal party.