The Darini (Δαρῖνοι) (manuscript variant: Darnii [Δάρνιοι]) were a people of ancient Ireland mentioned in Ptolemy's 2nd century Geography as living in south Antrim and north Down. Their name implies descent from an ancestor called Dáire (*Dārios), as claimed by several historical peoples, including the Dál Riata and Dál Fiatach (Ulaidh) in the same area of eastern Ulster as well the Érainn (Iverni) of Munster. An early name for Dundrum, County Down, is recorded as Dún Droma Dáirine, and the name Dáirine was applied to the Érainn dynasty.