Matthew John Lushington Kirk (born 10 October 1960) is a British businessman and former diplomat. He was the British Ambassador to Finland from August 22, 2002 until he resigned from the Diplomatic Service in 2006 to take up a position as Director of External Relationships for Vodafone.
The youngest son of Sir Peter Michael Kirk MP, Kirk was educated at Felsted School and St John's College, Oxford. In 1989, he married Anna Thérèse Macey, with whom he has two children- Georgina and Alexandra Kirk.