Thomas of Woodstock, 1st Duke of Gloucester, 1st Earl of Buckingham, 1st Earl of Essex, Duke of Aumale, KG (January 7, 1355 – September 8 or 9, 1397) is the fourteenth and youngest child of King Edward III of England and Philippa of Hainault.
He is the fifth of the five sons of Edward III who survived to adulthood.