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.[1] Their name implies descent from an ancestor called Dáire (*Dārios),[2] as claimed by several historical peoples, including the Dál Riata and Dál Fiatach (Ulaidh) in the same area of eastern Ulster[3] 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.