South Shore—St. Margarets (formerly South Shore—St. Margaret's and South Shore) is a federal electoral district in Nova Scotia, Canada, that has been represented in the House of Commons of Canada since 1968. It covers the South Shore region of Nova Scotia.

It was created in 1966 mostly from Queens—Lunenburg and Shelburne—Yarmouth—Clare. In 2003, the district added portions of Halifax West.

From the 2006 census

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It consists of:

and

After the 2012 federal electoral redistribution, the riding gained 11% of its new territory from Halifax West.

This riding has elected the following Members of Parliament:

Candidate info from their own or the political parties websites: