186th Field Regiment was a unit of Britain's Royal Artillery (RA) during World War II. It was formed in Scotland and joined 52nd (Lowland) Infantry Division remaining with that formation for its whole existence. It served in Home Forces for most of the war, undergoing training in mountain warfare and air-portable operations before eventually going into action at sea level in the Battle of the Scheldt. It then took part in the fighting in the Rhineland (Operations Blackcock and Veritable), and then the drive to Bremen. It was disbanded at the end of the war.