William Grace

William Grace may refer to:
 * William Russell Grace (1832–1904), mayor of New York and the founder of W. R. Grace and Company
 * W. G. Grace (William Gilbert Grace, 1848–1915), English cricketer
 * William M. Grace (1934–2004), casino developer
 * Billy Grace (1876–1938), Australian rules footballer
 * Willie Grace (1917–2006), American baseball player
 * Several of the Grace baronets