Anthony Horowitz (born April 5, 1955) is a British author and television scriptwriter. His most successful work has included creating and writing the series Foyle's War for ITV and writing several episodes of another ITV series, Midsomer Murders. Both of these are detective murder mystery series. He is also the author of the highly successful Alex Rider series of adventure novels for children.

He began writing for television in the 1980s, contributing to Granada Television's anthology series Dramarama, and also writing for the popular fantasy series Robin of Sherwood. His association with murder mysteries began with the adaptation of several Hercule Poirot stories for ITV's popular Agatha Christie's Poirot series during the 1990s.

Often his work has a comic edge, such as with the comic murder anthology Murder Most Horrid (BBC TWO, 1991) and the comedy-drama The Last Englishman (1995), starring Jim Broadbent. In 2001 he created a drama anthology series of his own for the BBC, Murder in Mind, an occasional series which deals with a different set of characters and a different murder every one-hour episode.

He is also less-favourably known for the creation of two short-lived and generally derided science-fiction shows, Crime Traveller (1997) for BBC ONE and The Vanishing Man (pilot 1996, series 1998) for ITV. The successful launch of the Second World War-set detective series Foyle's War in 2002 helped to restore his reputation as one of Britain's foremost writers of popular drama.

He is also the writer of a feature film screenplay, The Gathering, which was released in 2002 and starred Christina Ricci.

Anthony Horowitz also writes the Alex Rider books, which are about a 14-year old boy who becomes a spy. Currently, there are 6 Alex Rider books (Stormbreaker, Point Blanc, Skeleton Key, Eagle Strike, Scorpia and Ark Angel). The 6th book, Ark Angel, was released on April 1, 2005..