Robert James Henderson was a Progressive Conservative party member of the Canadian House of Commons.
He was born in Brooke Township, Ontario and became a municipal clerk, farmer and teacher by career.
Henderson attended high school in Watford, Ontario and then the London Normal School. He taught school from 1899 to 1940. He was first elected to Parliament at the Lambton—Kent riding in the 1945 general election, defeating Liberal party incumbent Hugh MacKenzie.
After serving one term, the 20th Canadian Parliament, Henderson was defeated by MacKenzie in the 1949 election.