William James Orton Henderson MBE (13 October 1916 – 15 May 2006) was a Liberal party member of the House of Commons of Canada. He was born in Empress, Alberta and became a soldier, barrister, lawyer and Supreme Court of Ontario judge. Henderson was first elected at the Kingston City riding in the 1949 general election. After a redistribution of electoral districts, Henderson was re-elected for successive Parliamentary terms in at the Kingston riding in the 1953 and 1957 elections. He was defeated in the 1958 election by Benjamin Allmark of the Progressive Conservative party.