Caloe was a town in the Roman province of Asia. It is mentioned as Kaloe or Keloue in 3rd-century inscriptions, as Kalose in Hierocles's Synecdemos (660), and as Kalloe, Kaloe, and Kolone in Parthey's Notitiæ episcopatuum, in which it figures from the 6th to the 12fth or 13th century.
The bishopric of Caloe is included in the Catholic Church's list of titular sees. It was a suffragan of the metropolitan see of Ephesus and was thus within the Roman province of Asia. Lequien was therefore mistaken in supposing that the titular see was named after Lake Koloe in Lydia, near which were the tombs of Lydian kings and the temple of Artemis Koloene.
- Annuario Pontificio 2013 (Libreria Editrice Vaticana, 2013, ISBN 978-88-209-9070-1), p. 856
- Sophrone Pétridès, "Caloe" in Catholic Encyclopedia (New York 1908)