Meletius or Meletios () is a given name of Greek origin: μελέτη ('care', 'attention') + -ιος, a suffix of relation, i.e., meaning "caring", "attentive". Notable people with the name include:
Saints Meletius I of Antioch (died 381), Patriarch of Antioch 360–381 Meletios the Younger (died ), monk and pilgrim Meletius I of Constantinople (1549–1601), locum tenens Ecumenical Patriarch of Constantinople 1597–1598 (same as Meletius I of Alexandria)
Patriarchs Meletius of Jerusalem, Patriarch of Jerusalem from 1731 to 1737 Meletius II of Constantinople (died 1780), Ecumenical Patriarch of Constantinople 1768–1769 Meletius III of Constantinople (1772–1845), Ecumenical Patriarch of Constantinople in 1845 Meletius II of Antioch (1837–1906), Patriarch of Antioch 1899–1906 Meletius IV of Constantinople (1871–1935), Ecumenical Patriarch of Constantinople 1921–1923 (same as Meletius II of Alexandria)
Other people Melitius of Lycopolis (died 327), bishop and founder of the Melitians Meletius Smotrytsky ( – 1633), archbishop and proposed saint Meletius Tipaldi (died 1713), Orthodox turned Uniate bishop Meletis Vasileiou (died 1826) Meletios Kalamaras (1933–2012), late Metropolitan of Nicopolis and Preveza