Castlebay (Scottish Gaelic: Bàgh a' Chaisteil [baːɣ ə ˈxaʃtʲɪl]) is the main village and a community council area on the island of Barra in the Outer Hebrides, Scotland.

The main street forms a square with the ferry terminal and the ring road, and features several grocery shops, a bank, post office, and tourist information centre.

[7] Kisimul Castle is located approximately 100 yards (90 m) away from the ferry terminal in the centre of the bay that Castlebay overlooks.

[citation needed] In 2001, the castle was leased by the Chief of Clan MacNeil to Historic Scotland for 1,000 years for the annual sum of £1 and a bottle of whisky.

Mackenzie, who lived near the airport and died in 1972, is buried in a grave marked by a simple cross at Cille Bharra cemetery, which is situated a little way up the hillside overlooking Eoligarry jetty.

[10][11] In the 2010 Channel 4 programme Dom Joly and the Black Island, Joly and Tintinologist Michael Farr identify Castlebay and Kisimul as the locations of Kiltoch and the Ben More Castle used as settings in The Adventures of Tintin comic The Black Island, although the scenes of reaching it by boat and exploring it on foot were filmed at Lochranza Castle on the Isle of Arran.

From summer 2016, Lord of the Isles began a dedicated daily service between Mallaig and Lochboisdale, ending South Uist's link with Oban.