William Paston may refer to:
William Paston (died 1444) (1378–1444), Justice of the Common Pleas William Paston, 2nd Earl of Yarmouth (1654–1732), British peer and politician Sir William Paston, 1st Baronet (1528–1610), English benefactor William Paston, writer of the Paston Letters
See also Paston (disambiguation)