William Alington
William Alington or Allington may refer to:
- Sir William Alington (speaker), Speaker of the House of Commons, MP for Cambridgeshire, 1410, 1416, 1429
- William Allington (of Horseheath), MP for Cambridgeshire, 1433, 1436, 1439?
- Sir William Allington (of Bottisham), Speaker of the House of Commons, MP for Cambridgeshire, 1472, 1477, married Joanne Ansty, daughter of John Ansty, in 1457
- William Alington, 1st Baron Alington, Irish peer
- William Alington, 3rd Baron Alington, Irish peer, MP for Cambridge, 1664–1685
- Bill Alington, New Zealand modernist architect
- Bill Allington, American Minor league baseball player and manager