Miriam O'Callaghan (born 1959 or 1960) is an Irish television current affairs presenter with RTÉ. O'Callaghan has presented Prime Time since 1996, and her own summer talk show, Saturday Night with Miriam, from 2005 onwards. In the summer of 2009, she began a radio show, Miriam Meets..., since replaced by live show Sunday with Miriam. She is also the first woman to present a full episode of The Late Late Show.