| Charles Calder | |
| Office: | Ontario MPP |
| Term1: | 1914 – 1919 |
| Predecessor1: | W. E. N. Sinclair |
| Successor1: | W. E. N. Sinclair |
| Term2: | 1905 – 1911 |
| Predecessor2: | John Dryden |
| Successor2: | W. E. N. Sinclair |
| Term3: | 1898 (March–October) |
| Predecessor3: | John Dryden |
| Successor3: | John Dryden |
| Constituency3: | Ontario South |
| Party: | Conservative |
| Birth Date: | 29 December 1852 |
| Birth Place: | Whitby Township, Canada West |
| Death Place: | Brooklin, Ontario |
| Occupation: | Farmer |
Charles Calder (December 29, 1852 - April 6, 1920) was an Ontario farmer and political figure. He represented Ontario South in the Legislative Assembly of Ontario in 1898 and from 1905 to 1919 as a Conservative member.
He was born in 1852 at Whitby Township, the son of John Calder, a Scottish immigrant, and was educated in Whitby. Calder served as reeve for Whitby Township from 1893 to 1896. He was elected to the provincial assembly in 1898 but that election was appealed and he lost the subsequent by-election to John Dryden. He defeated Dryden in 1905 to win his seat in the provincial assembly. Calder lived near Brooklin. He died in 1920 at his home in Brooklin.[1] [2]