Velius Longus (fl. 2nd century AD), Latin grammarian during the reign of Trajan (or Hadrian), author of an extant treatise on orthography (Heinrich Keil, Grammatici Latini, vii). He is mentioned by Macrobius (Saturnalia, iii.6.6) and Servius (Comm. on Aen. x.245) as a commentator on Virgil.
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "article name needed". Encyclopædia Britannica (11th ed.). Cambridge University Press.