Olivia Mitchell (born 31 July 1947) is a former Irish Fine Gael politician who served as a Teachta Dála (TD) for the Dublin South constituency from 1997 to 2016. Mitchell was born in Birr, County Offaly. She was educated at Dominican College on Eccles Street and at Trinity College Dublin, where she qualified with a Bachelor of Arts in Economics and Politics. She was an Economics teacher before entering politics. She first became involved in politics in 1985, when she was elected to Dún Laoghaire–Rathdown County Council. She was Cathaoirleach (Chair) of the council from 1995 to 1996. She served on the council until 2003. She was an unsuccessful candidate for Dublin South at the 1989 and 1992 general elections.