Guy Alvin Leader (October 21, 1887 – October 15, 1978) was an American politician and businessman.
Born in Hametown, Pennsylvania, Leader owned a poultry business in York County, Pennsylvania.
He served in the Pennsylvania State Senate, as a Democrat, from 1943 to 1951.
His son was Governor of Pennsylvania George M. Leader.
This article about a member of the Pennsylvania State Senate is a stub.