William Smyth (disambiguation)

William Smyth is the name of:

William Smyth ( bishop) ( 1460-1514 ), English clergyman, Bishop of Lincoln
William Smyth ( mathematician ) ( 1797-1868 ), American mathematician
William Smyth ( politician ) ( 1824-1870 ), American politician
William Henry Smyth (1788-1865), English astronomer
William Ross Smyth (1857-1932), Canadian politician