Pieter van Aelst or Pieter van Aelst III (c. 1495 – c. 1560) was a Flemish tapestry weaver whose workshop commenced by his grandfather was one of the leading weavers of Flanders in the first half of the 16th century.[1]
He should not be confused with Pieter Coecke van Aelst (1502-1550), a Flemish painter who was also a significant tapestry designer.