Kei Mouth (Afrikaans: Keimond) is a resort town on the southeast coast of South Africa, situated in the Wild Coast region of the Eastern Cape Province, situated 94 kilometres from the city of East London.

The Kei Mouth Country Club has a 12-hole golf course and there is a bowling green and a squash court adjacent to the campsite.

The economy of Kei Mouth revolves largely around tourism due to its location at the southern entrance to the erstwhile Transkei region.

There are several accommodation establishments, a municipal campsite, multiple restaurants and bars, one supermarket (Savmor) and a fuel station.

The town is home to a large number of retirees, thanks to the mild climate and holiday atmosphere.