Wytze (nom de plume) or Wietse Keuning (official name) (21 December 1876, Tolbert - 18 December 1957, Groningen) was a Dutch school teacher, author and classical music critic. He was the co-author of three series of successful primary schoolbooks and one book of folk tales for young people. He wrote three novels situated in the northern part of Holland and a three-part three-volume fictionalized biography of Ashoka the Great. Keuning finished writing a two-part historical novel on Helena, the mother of Constantine the Great, but died before the publication process was started.