Kirkibost (Scottish Gaelic: Eilean Chirceaboist) is a low-lying island west of North Uist in the Outer Hebrides of Scotland.

Together with Baleshare, it forms part of a Site of Special Scientific Interest.

[6] The small islands of Eilean Mòr, Bior-eilean and Sròmaigh lie between Kirkibost and North Uist.

[4] The island is important for corncrakes, various wading birds and overwintering wildfowl.

[6] Kirkibost has been cultivated in the past, but is now used only for seasonal cattle grazing.