is rudolph the red nosed reindeer public domain

Yes, Rudolph the Red-Nosed Reindeer is a public domain character. He first appeared in a story by Robert L. May in 1939, and the story has been retold in many forms over the years, including books, movies, and TV specials. The character has become an iconic part of Christmas culture and has been used in a variety of ways, from toys and clothing to advertising and branding.