The Selby and Ainsty Conservative MP, Nigel Adams, says he won’t be standing at the next election.
Nigel Adams took the seat in 2010 and had a majority of more than 20,000 at the last election.
Mr Adams, 55, who is also a minister without portfolio, wants to concentrate on other interests.
He was previously the Minister for Asia at the Foreign, Commonwealth and Development Office.
In September, he was caught on video swearing at a veteran pro-EU campaigner who approached him outside the Houses of Parliament.
A spokesperson for the MP told YorkMix: “The gentleman in the blue top hat who Mr Adams directed some colourful language towards is a well known political activist known as ‘Stop Brexit Man’.
Mr Adams told him to “F*** off later in the video of the encounter.