Nanker (born Jan Kołda; also known as Nankier; ca. 1270–1341) was a Polish nobleman of Oksza coat of arms as well as bishop of Kraków (1320–1326) and bishop of Wrocław (1326–1341).
Supporter of King Ladislaus I the Short and archbishop and primate of Poland Jakub Świnka, he initiated the construction of the Wawel Cathedral. In 1337 he excommunicated John of Bohemia.