Lochaber (/lɒxˈɑːbər/) (Scottish Gaelic: Loch Abar) is an area in the west of the Scottish Highlands. Historically it referred to the area between Loch Linnhe and Loch Leven, around the town of Fort William. It is now also used to refer to a much wider area, one of the 16 ward management areas of the Highland Council of Scotland and one of eight former local government districts of the two-tier Highland region.
The ward management area is one of five comprising the Highland Council's Ross, Skye and Lochaber corporate management area, which is one of three Highland Council corporate management areas. The Ross, Skye and Lochaber area consists of six out of the 22 wards of the council area and the Lochaber area consists of two wards, the Caol and Mallaig ward, which elects three councillors, and the Fort William and Ardnamurchan ward, which elects four councillors. Each of the other wards of the corporate area is a separate ward management area.
There is also a Ross, Skye and Lochaber constituency of the House of Commons of the Parliament of the United Kingdom (at Westminster), but its boundaries are not exactly those of the council corporate management area. The constituency was created in 2005 with boundaries based on those of wards in use during the period 1999 to 2007.