| John Robert Holmes | |
| Constituency Mp: | Lambton—Kent |
| Parliament: | Canadian |
| Predecessor: | Mac McCutcheon |
| Successor: | District was abolished in 1976. |
| Term Start: | 1972 |
| Term End: | 1979 |
| Constituency Mp2: | Kent |
| Parliament2: | Canadian |
| Predecessor2: | District was created in 1976. |
| Successor2: | Maurice Bossy |
| Term Start2: | 1979 |
| Term End2: | 1980 |
| Birth Date: | 3 September 1927 |
| Birth Place: | Tilbury, Ontario |
| Party: | Progressive Conservative |
John Robert Holmes (3 September 1927 - 29 December 2011) was a Canadian politician. First elected in the 1972 federal election, he served as a Progressive Conservative Member of Parliament representing the riding of Lambton—Kent. He was re-elected in the 1974 and 1979 elections, but was defeated in the 1980 election.