MV Ali Cat is a motor catamaran passenger ferry owned by Caledonian Maritime Assets Limited and operated by Caledonian MacBrayne, which along with MV Argyll Flyer provides a service from Dunoon to Gourock across the Firth of Clyde.

Caledonian MacBrayne, in short form CalMac, is the trade name of CalMac Ferries Ltd, the major operator of passenger and vehicle ferries to the west coast of Scotland, serving ports on the mainland and 22 of the major islands. It is a subsidiary of holding company David MacBrayne, which is owned by the Scottish Government.