Algoma East was a federal electoral district in Ontario, Canada, that was represented in the House of Commons of Canada from 1904 to 1968. It was created in 1903 from parts of Algoma riding. It initially consisted of the territorial district of Manitoulin and the part of the territorial district of Algoma lying east of a line drawn from south to north along the limit between the townships of Lefroy and Plummer Additional and due north to the northern limit of Algoma. In 1904, the territorial district of Manitoulin was transferred out of the riding.