Una Walker is an artist and writer based at Flax Art Studios, Belfast. She has exhibited extensively in Ireland and internationally, making site and context specific installation, audio and video works, and works on paper.

Site specific installation works have been constructed in diverse locations including: military fortifications in Ireland, Scotland and Finland: a derelict factory in Poland; and a cathedral in Wales.

Works have been included on numerous broadcasting platforms and in international festivals including In Sonora, Madrid (2024) and Earthrising, Dublin (2025).