Harry Bayne Whiteside (4 July 1909 – 18 May 1984) was a Liberal party member of the House of Commons of Canada.
He was born in Pasqua, Saskatchewan and became a farmer by career.
Whiteside was educated in Sceptre, Saskatchewan and at Regina.
After completing his only federal term, the 21st Canadian Parliament, Whiteside did not seek another federal term in the 1953 election.
He died in Delta, British Columbia in 1984.