Fiona Bernadette Fox OBE HonFRS (born 12 November 1964) is a British writer and chief executive^[4] of the Science Media Centre.^[2]

Fox was a writer for Living Marxism, a British magazine produced by the Revolutionary Communist Party (RCP). In 1995, LM published an article by Fox denying the Rwandan genocide.^[5][6][7][8]

Fox became head of media at CAFOD in 1995.^[1]

In December 2001 Fox was appointed the founding director of the Science Media Centre, based at the Royal Institution of Great Britain in London^[2] and its current chief executive.

In that capacity she has been a regular media commentator and gave evidence at the Leveson Inquiry into press standards in the UK in 2012.^[9]

Fox was appointed Officer of the Order of the British Empire (OBE) in the 2013 Birthday Honours for services to science.^[3] She was elected an Honorary Fellow of the Royal Society in 2023.^[10]

Fox was born into an Irish Catholic family in Mancot, near Hawarden, North Wales.^[1] She has two older sisters, one of whom is Claire Fox.^[11] She is a supporter of Celtic F.C.^[1] and is married to political commentator and teacher Kevin Rooney.^[1] She was formerly a member of the Revolutionary Communist Party.^{[12][13][14][15][16]}

— (2022). Beyond the Hype. London: Elliott and Thompson Limited. ISBN 978-1-78396-617-2. OCLC 1274201845.