Mwnt is a very small community and ancient parish in south Ceredigion, Wales, on the Irish Sea coast about 4.5 miles from Cardigan. It gets its name from the prominent steep conical hill, a landmark from much of Cardigan Bay, that rises above the beach.

The Church of the Holy Cross (Welsh: Eglwys y Grog) is an example of a medieval sailor's chapel of ease. The site is said to have been used since the Age of the Saints, but the present building is probably 14th century. It has an example of a 12th or 13th century font made of Preseli stone.