Clan Maclaine of Lochbuie is a Scottish Clan that inhabited lands on the southern end of the Isle of Mull in the Inner Hebrides of the western Scottish Highlands. "Maclaine" is an alternate spelling for "MacLean." Clan Maclaine of Lochbuie and Clan Maclean of Duart are two separate clans. However, the two clans share a strong family connection. The 26th clan chief is The Much Honoured Lorne Gillean Ian Maclaine of Lochbuie, Baron of Moy. The clan is recognized by both the Standing Council of Scottish Chiefs and the Lord Lyon.

Lord of the Isles or King of the Isles (Scottish Gaelic: Triath nan Eilean or Rìgh Innse Gall) is a title of Scottish nobility with historical roots that go back beyond the Kingdom of Scotland. It began with Somerled in the 12th century and thereafter the title was held by a series of his descendants, the Norse-Gaelic rulers of the Isle of Man and Argyll and the islands of Scotland in the Middle Ages. They wielded sea-power with fleets of galleys (birlinns). Although they were, at times, nominal vassals of the kings of Norway, Ireland, or Scotland, the island chiefs remained functionally independent for many centuries. Their territory included much of Argyll, the Isles of Arran, Bute, Islay, the Isle of Man, Hebrides, Knoydart, Ardnamurchan, and the Kintyre peninsula. At their height they were the greatest landowners and most powerful lords after the kings of England and Scotland.