William Dollar (April 20, 1907 – February 28, 1986) was an American ballet dancer born in St. Louis and reared in East St. Louis, Illinois. His parents, Mr. and Mrs. Edward Dollar, operated a grocery store and meat market in East St. Louis.
His first ballet, Classic Ballet, was choreographed with Balanchine. Dollar restaged this work in 1944 as Constantia for Ballet International. He choreographed many other ballets, of which his best known is The Duel, originally staged in 1949 as Le Combat for Roland Petit's Ballets de Paris. Dollar also created the ballet for the Ford Motor Company pavilion at the New York World's Fair of 1939 at Flushing Meadows.
He worked with ballet companies in Brazil, Japan and Monte Carlo, and founded a national ballet company in Iran. Dollar was one of the country's top performers in terpsichorean art and made five appearances at the Municipal Opera in St. Louis. and choreographer