| George Hillmer | |
| Office1: | Ontario MPP |
| Term Start1: | 1923 |
| Term End1: | 1929 |
| Predecessor1: | Ernest Charles Drury |
| Successor1: | Thomas Aston Blakelock |
| Constituency1: | Halton |
| Office2: | Mayor of Oakville |
| Term Start2: | 1910 |
| Term End2: | 1912 |
| Predecessor2: | W.S. Davis |
| Successor2: | I.T. Madden |
| Birth Date: | 5 December 1866 |
| Birth Place: | Oakville, Canada West |
| Death Place: | Hamilton, Ontario |
| Party: | Conservative |
| Spouse: | Pauline Bradbury |
| Profession: | Businessman |
George Hillmer (1866 - 1935) was an Ontario merchant and political figure. He represented Halton in the Legislative Assembly of Ontario from 1923 to 1929 as a Conservative member.
He was born on December 5, 1866, in Oakville, Canada West the son of Edward Hillmer and Jean Titherington. Hillmer originally operated a delivery service and livery stable but later became the proprietor of a Ford agency. In 1894, he married Pauline Bradbury. Hillmer was a member of the town council for Oakville, serving as mayor from 1910 to 1912 and serving eight years as reeve. He defeated Ernest Charles Drury to win a seat in the provincial assembly in 1923. Hillmer was a Master Mason.
He died on January 30, 1935.