Joe O'Reilly (born 1 April 1955) is an Irish Fine Gael politician who has served as Leas-Chathaoirleach of Seanad Éireann since August 2020. He has served as a Senator for the Labour Panel since April 2016, and previously from 2007 to 2011 for the Industrial and Commercial Panel and from 1989 to 1992 for the Cultural and Educational Panel. He served as a Teachta Dála (TD) for the Cavan–Monaghan constituency from 2011 to 2016.