Captain Herbert Richard Westmacott MC (11 January 1952 – 2 May 1980) was a British Army officer who became the first person to be awarded a posthumous Military Cross. As an officer of the Grenadier Guards (2nd Battalion) on extra regimental employment to the Special Air Service (SAS), he died in an encounter with the Provisional Irish Republican Army. After his death Westmacott was posthumously awarded the Military Cross for gallantry in Northern Ireland during the period 1 February to 30 April 1980. He is buried in the churchyard of St Michael's, Up Marden, West Sussex.