Callender may refer to:
- People
- Charles Callender, owner of blackface minstrel shows in 19th century America
- Clarence Callender, athlete
- Emmanuel Callender, athlete
- James T. Callender, late 18th and early 19th century journalist
- John Callender, Scottish psychiatrist and philosopher
- Colin Callender, English television producer
- Robert Callender, Canadian cricketer
- Mary Pauline Callender, author of puberty and menstruation advice booklets in the 1920s and 1930s used to promote Kotex products
- Places
- Callender, Iowa, United States
- An alternative spelling of Callander, Scotland
- Companies and establishments
- Marie Callender's, restaurant and food manufacturer