Samuel Walsh has exhibited his work in many important open selection exhibitions throughout Ireland. He has been a consistent exhibitor at the Royal Hibernian Academy of Arts Exhibition in Dublin since first showing in 1982. He was an invited artist in 2005, 2008 and 2013. He has also shown as an invited artist at the RHA's Banquet Show. His work was selected for the Exhibition of Visual Art (EV+A) in Limerick in the 1980s and 1990s, and for the Irish Exhibition of Living Art, Dublinin the same decades. He has shown his work in Íontas, the small works exhibition in Sligo. the Claremorris Open, SADE, Cork and An Oireachtas, Dublin.
In Ireland, Walsh has been selected for a number of important group exhibitions including:
1985, 'The Bursary Show', Arts Council touring exhibition.
1987, 'The Silent Image', Boole Library, University College Cork.
1991, 'Irish Art of the Eighties', Modernism and Abstraction, Douglas Hyde Gallery, Dublin.
1992, 'Inside Out', Arts Council touring exhibition.