Major-General James Matthew Senior CBE, is a senior British Army officer who has served as General Officer Commanding Regional Command since September 2023.

Having attended the Royal Military Academy Sandhurst, Senior was commissioned in the Educational and Training Services Branch on 14 December 1996 as a subaltern (second lieutenant) with seniority in that rank from 11 December 1993 and immediately promoted to subaltern (lieutenant) with seniority from 11 December 1995.

[1] On 15 January 1999, he transferred to the King's Royal Hussars.

[3] He went on to be commanding officer of the Light Dragoons.

[6] He was appointed a Commander of the Order of the British Empire in the 2021 Birthday Honours.