Clan MacLachlan

Clan Maclachlan
Clann Lachlainn
Motto	Fortis et Fidus (strong and faithful)
Profile
Region	Highlands
District	Loch Fyne, Argyll
Plant badge	Rowan (or mountain ash)
Pipe music	Moladh Màiri (In Praise of Mary)
Chief
Euan John Maclachlan of Maclachlan
25th of Maclachlan and Baron of Strathlachlan
Seat	New Castle Lachlan
Historic seat	Old Castle Lachlan
Clan branches Maclachlan of Maclachlan (chiefs) Claflin family (descendants)
Allied clans Clan Maclean Clan Campbell (late 15th to early 17th century)
Rival clans Clan Campbell (late 17th to 18th century)

Clan Maclachlan (Scottish Gaelic: Clann Lachlainn [ˈkʰl̪ˠãũn̪ˠ ˈl̪ˠaxl̪ˠɪɲ]), also known as Clan Lachlan and Clann Lachlainn, is a Highland Scottish clan that historically centred on the lands of Strathlachlan on Loch Fyne, Argyll on the west coast of Scotland. The clan claims descent from Lachlan Mor, who lived on Loch Fyne in the 13th century, and who has left his name upon the countryside he once controlled: places such as Strathlachlan, Castle Lachlan and Lachlan Bay. Tradition gives Lachlan Mor a descent from an Irish prince of the O'Neill dynasty, Ánrothán Ua Néill, son of Áed, son of Flaithbertach Ua Néill, King of Ailech and Cenél nEógain, died 1036. Clan Maclachlan has been associated with other clans, such as Clan Lamont, Clan Ewen of Otter, Clan MacNeil of Barra, and the MacSweens: as all claim descent from Anrothan O'Neill who left Ireland for Kintyre in the 11th century. From this descent the clan claims a further descent from the legendary Niall Noigíallach, High King of Ireland, who lived from the mid 4th century to the early 5th century.

The clan took part in the Jacobite Risings as loyal supporters of the Stuart kings of Scotland. The seventeenth chief of the clan was killed in the Battle of Culloden in 1746. Following the Jacobite defeat, a Government warship is said to have damaged the clan seat of old Castle Lachlan.