Llŷr Huws Gruffydd, (born 25 September 1970) is a Welsh Plaid Cymru politician, serving as a Member of the Senedd (MS) for the North Wales region since 2011.

[3] Gruffydd stood for the Carmarthen West and South Pembrokeshire UK Parliament constituency at the 2001 general election, coming third,[4] and for the Carmarthen West and South Pembrokeshire Welsh Assembly constituency at the 2003 Assembly elections, coming second.

[10] He also chairs the cross-party group on horseracing, as well as being a member of cross-party groups on mental health, North Wales, public transport, renewable and low carbon energy, rural growth, shooting and conservation, small shops, sport and tourism.

[12][13] During his leadership, Gruffydd maintained the co-operation agreement between Welsh Labour and Plaid Cymru.

[14] Llyr Gruffydd was born and raised in Carmarthenshire and now lives close to Ruthin in Denbighshire.