Emerson Coatsworth Jr., KC (March 9, 1854 – May 11, 1943) was a Canadian lawyer and politician.

Born in Toronto, Coatsworth was educated at the public schools, and studied privately for matriculation into the Law Society.

A practicing lawyer, he was elected to the House of Commons of Canada for the riding of Toronto East in the 1891 federal election.

In 1904, he was elected an alderman for the Toronto City Council.

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