Ariane Sherine (born 3 July 1980) is a British comedy writer, journalist and creator of the Atheist Bus Campaign. She lives in London.

Sherine writes regularly for The Guardian's Comment & Debate section, and has also written for The Sunday Times and The Independent. She started in journalism aged 21, reviewing albums for NME, before coming runner-up in the BBC Talent New Sitcom Writers' Award 2002. She then wrote comedy for mainstream British TV shows including the BBC sitcoms My Family and Two Pints of Lager and a Packet of Crisps, and links for the Channel 4 quiz show Countdown after appearing on the show in 2003. In addition, Sherine wrote episodes of several CBBC and CITV shows, including The Story of Tracy Beaker, The New Worst Witch and Space Pirates, before returning to journalism in early 2008.

Sherine started the Atheist Bus Campaign in response to an evangelical Christian bus advertisement which gave the URL of a website "telling non-Christians they would spend 'all eternity in torment in hell', burning in 'a lake of fire'". She was brought up Christian; her father is a Unitarian Universalist, while her mother's side of the family are Parsi Zoroastrians (though both parents are non-practising). She has recently been nominated for Secularist of the Year 2009 (The Irwin Prize), a title awarded by the National Secular Society.