| Ross Webster | |
| Birthname: | Allan Ross Webster |
| Birth Date: | 1903 3, df=yes |
| Birth Place: | Duluth, Minnesota, United States |
| Riding: | Saint-Antoine—Westmount |
| Term Start: | March 1958 |
| Term End: | June 1962 |
| Predecessor: | George Marler |
| Successor: | Charles Drury |
| Profession: | Importer, merchant |
| Party: | Progressive Conservative |
Allan Ross Webster (24 March 1903 - 3 January 1988) was a Canadian businessman and politician. Webster was a Progressive Conservative party member of the House of Commons of Canada. He was born in Duluth, Minnesota, United States and became an importer and merchant by career.
After an unsuccessful attempt to win the Saint-Antoine—Westmount riding in the 1957 general election, Webster won the riding in the following year's election. After completing his only federal term, the 24th Canadian Parliament, Webster left office and did not campaign for another federal election.