The Wester Ross Supergroup is one of the subdivisions of the Neoproterozoic sequence of sedimentary rocks (or their metamorphic equivalents) in the Scottish Highlands.

It is metamorphosed to greenschist facies and sits within the Kishorn Nappe, part of the Caledonian thrust belt, making its exact relationship to the other outcrops difficult to assess.

This sequence of variably metamorphosed and deformed sandstones (psammites) was originally considered as separate from the "Torridonian" and formed the lower section of the Moine Supergroup.

[2] The age of this sequence is constrained by a combination of detrital zircon geochronology and by the dating of later metamorphic events.

Combined with the detrital zircons that indicate a dominantly Grenvillian source, this has led to a reinterpretation that the supergroup was deposited within a foreland basin, in front of the mountains formed by the Grenville Orogeny.