Foel Cedig is a Hewitt of 667.5 m in Gwynedd. Its closest neighbour in this register, Cadair Berwyn, is 9.8 km away.
It sits below Cadair Berwyn, only 9.8 km to the north-east and 164.5 m higher. It is the lowest of the five register hills in the Bala to Welshpool region, where Aran Fawddwy is highest. On the Hewitts height ladder it sits between Fountains Fell (667.8 m) and Muckish (667.1 m). Its nearest higher summit, Moel Sych (826.7 m, 9.1 km north-east), is a listed top not profiled here.