Carnedd y Filiast is a Hewitt of 669 m in Conwy, Gwynedd. It shares its height of 669 m with Slievemore.
On the Hewitts height ladder it sits between Slievemore (669 m) and Dodd Fell Hill (668 m). The summit is marked by a trig point. It falls on two OS 1:50,000 sheets, 124 and 125.