Cape Breton South and Richmond was a federal electoral district in the province of Nova Scotia, Canada, that was represented in the House of Commons of Canada from 1917 to 1925.

It consisted of the electoral district of South Cape Breton and the county of Richmond.

It was abolished with a law passed in 1924 and carried out in 1925, when it was redistributed into Cape Breton South and Richmond—West Cape Breton.

The riding was a dual-member constituency—it elected two members to Parliament.

[1][2][3][4] This riding elected the following members of Parliament:[5]