The Urdd National Eisteddfod is an annual Welsh-language youth festival of literature, music and performing arts organised by Urdd Gobaith Cymru.

Arguably Europe's largest youth festival, it is usually held during the last week of May. Locations alternate between north and south Wales. The Eisteddfod consists of competitive singing, recitation, art, composition, dance and instrumental events for contestants aged between 7 and 24 years. Avanti televise 110 hours live of the Urdd every year.