Peuker, Peucker is the German surname of:

Brigitte Peucker (born 1948), German academic Caspar Peucer (or Peucker) (1525–1602), German reformer, mathematician, astronomer, medic, diplomat and writer Ken Peucker (1935–2005), Australian rules footballer

See also Peukert:de:Peukert Peuckert:de:Peuckert