Olivia O'Leary (born 1949) is an Irish journalist, writer and current affairs presenter.
In the late 1970s, she began working for The Irish Times as parliamentary sketchwriter.
She became the first regular female senior presenter of the BBC's current affairs programme, Newsnight and also presented First Tuesday, a monthly documentary strand produced by Yorkshire Television for ITV.
She has co-authored the book Mary Robinson: The Authorised Biography, with Dr Helen Burke, and in 2004 wrote Politicians and Other Animals, a sketch on Irish politics.
[4] She was married to Paul Tansey, Economics Editor of The Irish Times.