Cairn Toul

Infobox Mountain
Name = Cairn Toul
Photo = Cairn_toul.jpg
Caption = Cairn Toul from Braeriach, with Lochan Uaine
Elevation = 1291 m (4236 ft)
Location = Cairngorms, Scotland
Range =
Prominence = "c." 166 m
Topographic
OS "Landrangers" 36, 43
Grid_ref_UK = NN963972
Listing = Munro, Marilyn
Translation = Hill of the barn
Language = Gaelic
Pronunciation = kʰaːrˠn ən t̪o.əlˠ̪

Cairn Toul (from the Gaelic Càrn an t-Sabhail, 'Hill of the barn') is the fourth highest mountain in Scotland, surpassed only by Ben Nevis, Ben Macdui and Braeriach. It is the second highest point in the western massif of the Cairngorms, linked by a bealach at around 1125 m above sea level to Braeriach.

The mountain towers above the western side pass of the Lairig Ghru.

Cairn Toul is often climbed on conjuction with other peaks. From the south it may be combined with The Devil's Point, which lies about 2.5 kilometres south-southeast. Alternatively it may be climbed from the north, including Braeriach and Sgor an Lochain Uaine. Both routes are long days by Scottish standards: around 15 km (plus return) regardless of whether one starts from Coire Cas above Speyside, or Linn of Dee to the south.

The mountain may also be climbed from the west, starting from Achlean in Glen Feshie. This provides for a slighter shorter route (around 27 km for the round trip), thought the walker must negotiate a large expanse of undulating boggy plateau in order to reach the Breariach-Cairn Toul massif.

There is a bothy, Corrour, at the point below Cairn Toul in the defile of the Lairig Grhu.