MV Lord of the Isles (Scottish Gaelic: Rìgh nan Eilean) is one of the larger Caledonian MacBrayne vessels, and operates from Mallaig on the west of Scotland.

[4] Entering service in 1989 on the Coll / Tiree and Barra / South Uist routes from Oban, MV Lord of the Isles combined two previous timetables.

[citation needed] Despite the apparent lack of success, it was announced in September 2015 that Lord of the Isles would commence daily return sailings on the route from the summer timetable in 2016.

Once again based in Mallaig rather than Oban, she also carried out extra sailings on the Armadale route [citation needed] alongside the 2016 season vessels, Lochinvar and Loch Bhrusda, which had replaced Coruisk.

This vessel reshuffling was criticised for the reduced capacity and inadequate passenger accommodation of Lochinvar, with calls for Coruisk to return to Mallaig alongside Lord of the Isles.

[citation needed] From summer of 2017, Lord of the Isles was partnered with Loch Fyne on the Mallaig–Armadale ferry crossing;[7] the previous smaller vessels were cascaded elsewhere in the CalMac network.

[13] On 6 August 2024, Lord of the Isles suffered a fire onboard which caused a major failure of the starboard engine whilst she was on passage between Mallaig and Lochboisdale.