Creag Ghlas Laggan (also known as Fionn Bhealach) is a hill on the Isle of Arran in south-western Scotland.

It is the highest point of the seven-mile-long ridge of land that runs north-west to south-east between the A841 road and the Sound of Bute in the north-eastern part of the island.

The best way up in terms of scenery is to follow the well-trodden and easily graded path from Lochranza to Bearradh Tom a' Muidhe at grid ref 962508, and strike south-east up the ridge from there.

On the north-east shore can be found Carboniferous limestone and Permian desert deposits.

Creag Ghlas Laggan has views towards Caisteal Abhail and the other peaks such as Goat Fell.