// Workers AI · dad joke modeWhat did Callistus say to his phone? You're calling me.

For a beetle, see Callistus (beetle).

Callistus, Calistus, Callixtus, and Calixtus (all four in Latin) and Kallistos (Greek: Κάλλιστος  "the most beautiful one") may refer to:

Patriarchs, popes and antipopes

• Patriarch Callistus I of Constantinople, patriarch from 1350 to 1353 and from 1354 to 1363
• Patriarch Callistus II of Constantinople, patriarch in 1397
• Saint Callixtus I, pope from c. 217 to 222
• Pope Callixtus II, pope from 1119 to 1124
• Antipope Callixtus III, antipope from 1168 to 1178
• Pope Callixtus III, pope from 1455 to 1458

Other persons

• Callistus, a Roman general of the 3rd century more commonly known as Balista
• Callistus Caravario (1903–1930), Italian Roman Catholic priest and missionary
• Callistus Chukwu (born 1990), Nigerian footballer
• Callistus Ndlovu (1936–2019), Zimbabwean politician
• Callistus Valentine Onaga (born 1958), Nigerian Roman Catholic bishop
• Callistus Rubaramira (born 1950), Ugandan Roman Catholic bishop
• Gaius Julius Callistus, a Greek freedman of the Roman emperor Caligula
• Georg Calixtus (1586–1656), German Lutheran theologian
• Kallistos Ware (1934–2022), Metropolitan of Diokleia in Phrygia, an Orthodox assistant bishop in the UK
• Nikephoros Kallistos Xanthopoulos, last of the Greek ecclesiastical historians, flourished c. 1320

See also

• All pages with titles containing Callistus
• All pages with titles containing Calistus
• All pages with titles containing Callixtus
• All pages with titles containing Calixtus

All pages with titles containing Kallistos

• Calixte, French-language variant