Pope Callixtus has been the papal name of three popes of the Catholic Church.
- Pope Callixtus I (saint; 217–222)
- Pope Callixtus II (1119–1124)
- Antipope Callixtus III (1168–1178)
- Pope Callixtus III (1455–1458)
See also
- List of popes
- Callistus (disambiguation)