Lady Elizabeth Fitzalan, Duchess of Norfolk (1366 – 8 July 1425) was an English noblewoman and the wife of Thomas Mowbray, 1st Duke of Norfolk.
Through her eldest daughter, Lady Margaret Mowbray, Elizabeth was an ancestress of Queens consort Anne Boleyn and Catherine Howard, and the Howard Dukes of Norfolk. Her other notable descendants include Charles Brandon, 1st Duke of Suffolk; Thomas Stanley, 1st Earl of Derby; Sir Thomas Wyatt, the younger; and Lady Jane Grey (by both parents).
Lady Elizabeth was born in Derbyshire, England, a daughter of Richard Fitzalan, 11th Earl of Arundel and his first wife Elizabeth de Bohun, daughter of William de Bohun, 1st Earl of Northampton and Elizabeth de Badlesmere.
Elizabeth had four husbands and at least six children:
She died 8 July 1425 in Wighill, Yorkshire, England, and was buried with her third husband in the Goushill tomb in St Michael's Church, Hoveringham, Thurgarton Hundred, Nottinghamshire, England.