The Bladelin Altarpiece, or Middelburg Altarpiece, is a triptych painting created around 1450 by the Early Netherlandish painter Rogier van der Weyden, towards the end of his artistic career. It depicts scenes relating to the birth of Jesus; and as the only nativity scene definitively attributed to van der Weyden is sometimes known as the Nativity Triptych (although the Saint Columba Altarpiece shows the Adoration of the Magi).
The triptych was donated to the new church of Middelburg in 1460, possibly by the town's founder Pieter Bladelin. It has been in the Gemäldegalerie, Berlin, since 1834.