Llywarch ap Llywelyn

Llywarch ap Llywelyn (fl. 1173–1220) was a medieval Welsh poet. He is also known by his bardic name, "Prydydd y Moch".

Llywarch was a poet in the court of Llywelyn ab Iorwerth and is known for a number of awdlau in praise of his lord. One of Llywarch's successors in the court of Gwynedd was the poet Dafydd Benfras.