Sheridan Aubrey John Senior (born March 2, 1936, in Port Elizabeth, Newfoundland) was a Canadian politician.
He represented the electoral district of Grand Falls in the Newfoundland and Labrador House of Assembly from 1971 to 1975.
He was a member of the Progressive Conservative Party of Newfoundland and Labrador, was appointed Minister of Community and Social Development and served as Provincial Director of the Progressive Conservative Party.
[1] Before politics, he was a school teacher, proprietor of "Trader John" Wholesale and Retail.
Since retirement, he and his wife dedicate their time to entertaining senior citizens and others with live musical performances.