The Master of Zweder van Culemborg (sometimes referred to as Master Pancracius) was a North Netherlandish painter of illuminated manuscripts active in the area around Utrecht between 1420 and 1440.
His namepiece is a canon page in a Missal depicting a bishop worshipping the crucified Christ.
According to a coat of arms in the border of the painting, the religious is Zweder van Culemborg, nominated to the town's bishopric in 1423; he was, however, unable to take his position until 1425.
At least five other works, illuminated in whole or in part by the Master, survive; four are in the library in Utrecht, while one is now in the Fitzwilliam Museum in Cambridge.
This article about a Dutch or Flemish painter mainly active before c. 1581 (the division of the Low Countries into the Dutch Republic and the Southern Netherlands) is a stub.