Duke Wartislaw X of Pomerania (1435 – 17 December 1478) was the second son of Duke Wartislaw IX of Pomerania and his wife, Sophia of Saxe-Lauenburg. Wartislaw married twice. On 5 March 1454, he married Elizabeth of Brandenburg, the widow of the Duke Joachim II "the Younger" of Pomerania-Stettin and daughter of Margrave John of the Neumark. She died in early 1465. They had two sons: Swantibor V and Ertmar, both died of the plague in 1464 at an early age. Wartislaw died in 1478 and was buried in the monastery at Neuenkamp, which later evolved into the city of Franzburg.