Ciarán Walsh’s work explores themes such as loss, transformation, identity, and precariousness. Working primarily through sculpture, video and texts, he explores the mediation of history, and investigates allegory in representations of both the supernatural and the natural world, drawing upon popular culture, European folk traditions, and the heritage of Romanticism.
His work has been exhibited at the Irish Musuem of Modern Art (Dublin), Kunsthalle Bratislava (Slovakia), Crawford City Gallery (Cork), CCA Glasgow (Glasgow), Ujazdowski Castle (Warsaw), Mother's Tankstation (Dublin) and Light & Wire Gallery (Los Angeles), among others, and his artist's novels are held in the permanent 'Book Lovers’ collection at MuHKA (Antwerp). Additionally, Walsh has curated a number of public commissions and projects in Ireland, the UK and Germany.

Most recently, Walsh was a resident artist at The Watch (Berlin) from April to June 2021, and had a solo exhibition, between a tenth and a fifteenth, at Studio Beta (Berlin) from June to July 2021.