| David John Rankin | |
| Office1: | Ontario MPP |
| Term Start1: | 1955 |
| Term End1: | 1959 |
| Predecessor1: | New riding |
| Successor1: | John Richard Simonett |
| Constituency1: | Frontenac—Addington |
| Party: | Progressive Conservative |
| Birth Date: | 20 June 1903 |
| Birth Place: | Collins Bay, Ontario |
| Death Place: | Kingston, Ontario |
| Occupation: | Lawyer |
David John Rankin (June 20, 1903 – November 17, 1959) was a Scottish-Canadian politician who was a Member of Provincial Parliament in Legislative Assembly of Ontario from 1955 to 1959. He represented the riding of Frontenac—Addington for the Ontario Progressive Conservative Party.[1] He was born in Collins Bay, Ontario and was a lawyer.[2] He died at a hospital in Kingston, Ontario in 1959 and was buried at Cataraqui Cemetery.[3]