Patrick John McCartan (born 5 May 1953) is an Irish lawyer who was a Circuit Court judge and a former politician.
A native of Wexford, he was educated at University College Dublin.[1] He first practiced as a solicitor working in criminal defence and was a founder of the McCartan & Hogan Solicitors law firm.[2][3]
In 1992, he joined with Proinsias De Rossa and five other Workers' Party deputies in resigning from the Workers' Party and in the creation of a new party, New Agenda which subsequently became Democratic Left.[2][3] He stood as a Democratic Left candidate at the 1992 general election but lost his seat.[5] After the collapse of the 1992–1994 Fianna Fáil–Labour Party coalition government, Democratic Left joined in a new coalition with Fine Gael and the Labour Party. This government subsequently appointed McCartan to the bench as a Circuit Court judge.[2]