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 in the House of Commons of Canada from 1904 to 1911 and from 1925 to 1968.