Bill, Billy, Will or William Sharkey may refer to:
William L. Sharkey (1798–1873), American judge and politician William J. Sharkey (US Navy officer) (1885–1918), officer in the United States Navy during World War I William J. Sharkey (murderer) (1847–?), convicted murderer and minor New York City politician Bill Sharkey (footballer) (1873–1946), Australian footballer Bill Sharkey (boxer) (1949-1998), American boxer