2nd Regiment, Royal Horse Artillery was a regiment of the Royal Horse Artillery that served in World War II. It saw action in France, Greece, North Africa and Italy. It was redesignated as 2nd Field Regiment, Royal Artillery in 1958. The regiment had an earlier incarnation as B Brigade, RHA, formed from the Horse Brigade, Royal Artillery in 1864 before being broken up in 1889. It was reestablished in 1901 as II Brigade, RHA but was broken up at the outbreak of World War I as its constituent battery was posted away.