Longus, sometimes Longos (Greek: Λόγγος), was the author of an ancient Greek novel or romance, Daphnis and Chloe. Nothing is known of his life; it is assumed that he lived on the isle of Lesbos (setting for Daphnis and Chloe) during the 2nd century AD.
It has been suggested that the name Longus is merely a misinterpretation of the first word of Daphnis and Chloe's title Λεσβιακῶν ἐρωτικῶν λόγοι ("story of a Lesbian romance", "Lesbian" for "from Lesbos island") in the Florentine manuscript; EE Seiler observes that the best manuscript begins and ends with λόγου (not λόγγου) ποιμενικῶν.
Other ancient Greek novelists:
- Chariton - The Loves of Chaereas and Callirhoe
- Xenophon of Ephesus - The Ephesian Tale
- Achilles Tatius - Leucippe and Clitophon
- Heliodorus of Emesa - The Aethiopica