Dan Boyle, born in Chicago to Irish parents, moved to Cork, Ireland, at eight, settling in Turners Cross. He attended local schools and studied at Cork Regional Technical College (now MTU), later earning an MBS in Government from University College Cork in 2015.
Elected to Cork City Council in 1991 as the first Green Party member, he won a Dáil Éireann seat in 2002. In 2007, he was nominated to Seanad Éireann, serving as Deputy Leader, and chaired the Green Party from 2007 to 2011. Re-elected to Cork City Council in 2019, he is active in environmental, arts, and social justice causes and serves on the Irish Council for Social Housing board.
He has one daughter, Saoirse, and three grandchildren. In 2011, he released the album Third Adolescence and has authored three books.