Meletius or Meletios (Greek: Μελέτιος) 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:

• Meletius I of Alexandria, Saint and Patriarch from 1590 to 1601 (same as Meletius I of Constantinople)
• Meletius II of Alexandria, Patriarch from 1926 to 1935 (same as Meletius IV of Constantinople)

• Meletius I of Alexandria, Saint and locum tenens of Constantinople (1597-1598) (Same as Meletius I of Alexandria)
• Meletius II of Constantinople, patriarch in 1769
• Meletius III of Constantinople, patriarch in 1845
• Meletius IV of Constantinople, patriarch 1921-1923 (same as Meletius II of Alexandria)

• Melitius of Lycopolis, bishop and founder of the Melitians
• Meletius of Antioch, Saint and Patriarch from 360 to 381
• Meletios the Younger (d. c. 1105), monk and pilgrim
• Meletius II of Antioch, Patriarch from 1899 to 1906
• Meletius of Jerusalem, Patriarch of Jerusalem from 1731 to 1737
• Meletius Smotrytsky, Archbishop and proposed saint
• Meletios Kalamaras, late Metropolitan of Nicopolis & Preveza