Two islands in the Inner Hebrides, separated at high tide and also the name of a parish in the county of Argyll. Prior to 1861 Colonsay and Oronsay were in the parish of Jura. Not to be confused with the island of Little Colonsay, in the parish of Kilninian, the island of Colsay in Shetland, Oronsay, a tidal island of South Uist, or Oronsay in the mouth of Loch Sunart, for which see Oronsay (Morvern).