John Behan (born 1938) is an Irish sculptor from Dublin. He studied at the National College of Art and Design in Dublin, and Ealing Art College, London, and Oslo's Royal Academy School.
He helped establish the Project Arts Centre, Dublin in 1967 and the Dublin Art Foundry. Notable sculptures include Arrival, commissioned by the Irish Government and presented to the United Nations in 2000 and Wings of the World in Shenzhen, China, 1991. He is a member of Aosdána.
The Liberty Tree sculpture in Carlow, designed by John Behan, commemorates the 1798 Rising of the United Irishmen. Several hundred rebels were slain in Carlow town and their remains are buried in the 'Croppies Grave', in Graiguecullen, County Carlow.