Cape Breton South (federal electoral district)
| Nova Scotia electoral district | |
|---|---|
| Defunct federal electoral district | |
| Legislature | House of Commons |
| District created | 1924 |
| District abolished | 1966 |
| First contested | 1925 |
| Last contested | 1965 |
Cape Breton South (French: Cap-Breton-Sud) was a federal electoral district in the province of Nova Scotia, Canada, that was represented by one MP in the House of Commons of Canada from 1904 to 1911 and from 1925 to 1968.