Simon Tisdall (born 1953) is a columnist for The Guardian newspaper and an assistant editor of the publication.
He was born in Manchester and educated at Holland Park School in Kensington, one of the first comprehensives, which opened in 1958. From 1971 to 1974 he studied history, politics and philosophy at Downing College, Cambridge.
He joined The Guardian in 1979. From 1989–94 he was the newspaper's US Editor and White House correspondent. From 1994–98 he was Foreign Editor. During 1996–98, he was the Foreign Editor of The Observer.
Tisdall has criticised Britain's close ties with Saudi Arabia and British involvement in the Saudi Arabian-led intervention in Yemen. In 2018, he wrote that "the UK-Saudi alliance is pernicious, encouraging the worst in both sides, and deeply corrosive of “our values”. May’s main focus is not on the unnumbered Yemeni civilians who continue to die as a result of the Saudi-led, British-backed bombing campaign."