Joseph Costello (born 13 July 1945) is an Irish Labour Party politician who has been a member of Dublin City Council since 2019. He served as a Minister of State from 2011 to 2014. He was a Teachta Dála (TD) for the Dublin Central constituency from 1992 to 1997 and 2002 to 2016. He was a Senator for the Administrative Panel from 1989 to 1992 and from 1997 to 2002. During his time as councilor, he was Deputy Lord Mayor of Dublin to then Lord Mayor Alison Gilliland from 2021 to 2022.