| Peter McGibbon | |
| Constituency Mp: | Muskoka |
| Parliament: | Canadian |
| Term Start: | 1917 |
| Term End: | 1921 |
| Predecessor: | William Wright |
| Successor: | William James Hammell |
| Constituency Mp2: | Muskoka—Ontario |
| Parliament2: | Canadian |
| Term Start2: | 1925 |
| Term End2: | 1935 |
| Successor2: | Stephen Joseph Furniss |
| Birth Date: | 19 August 1873 |
| Birth Place: | St. Thomas, Ontario, Canada |
| Party: | Conservative |
| Occupation: | Physician |
Peter McGibbon (August 19, 1873 - October 10, 1936) was a Canadian politician.
Born in St. Thomas, Ontario, McGibbon was a physician by profession. During World War I, he was a medical officer with the 1st Black Watch and the 8th Royal Berkshire Regiment. He was awarded the Military Cross in 1915. A city councillor for the city of Bracebridge, Ontario, he was first elected to the House of Commons of Canada for the electoral district of Muskoka in 1917 as a Unionist. He was defeated in 1921 but was re-elected in 1925 as a Conservative for the newly created electoral district of Muskoka—Ontario. He was defeated in 1935.