| Ross McEwing | |
| Office1: | Ontario MPP |
| Term Start1: | 1937 |
| Term End1: | 1951 |
| Predecessor1: | George McQuibban |
| Successor1: | John Henry Haines Root |
| Constituency1: | Wellington North |
| Party: | Liberal |
| Birth Date: | 17 October 1888 |
| Birth Place: | Mapleton, Ontario |
| Occupation: | Farmer |
Ross Atkinson McEwing (October 17, 1888 - 1966) was a farmer and politician in Ontario, Canada. He represented Wellington North in the Legislative Assembly of Ontario from 1937 to 1951 as a Liberal.
The son of James McEwing, who also served in the Ontario assembly, and Louisa S. Atkinson, he was born in Maryborough township. In 1913, he married Florence Grose. McEwing was a vice-president of the Union Telephone Company and served on municipal council from 1932 to 1937.[1]