Sir Simon William English, KNZM (born 30 December 1961) is a former New Zealand Prime Minister.

A farmer and public servant before entering politics, English was elected to the New Zealand Parliament in 1990 as the National Party's candidate in the Wallace electorate. He was elevated to Cabinet in 1996 and in 1999 was made Minister of Finance.

He served as the 39th prime minister of New Zealand from 2016 to 2017 and as the 17th deputy prime minister of New Zealand and Minister of Finance from 2008 to 2016 under John Key and the Fifth National Government.