Colonel Sir John Archibald Ruggles-Brise, 2nd BaronetCBOBEBtKStJTDDLJP (13 June 1908 – 20 February 2007) was Lord Lieutenant of Essex from 1958 to 1978, and was the first pro-chancellor of Essex University from 1964 to 1979. He was also a president of the Country Landowners' Association (now the Country Land and Business Association) from 1957 to 1959, and was a co-founder of the CLA's annual Game Fair in 1958.
He joined the Territorial Army (TA) in 1938 (his father commanded the 104th Essex Yeomanry Field Brigade R.A.). When the Second World War broke out, he enlisted as a gunner in the 54th Anti-Aircraft Regiment. He was commissioned, and commanded a Royal Artillery anti-aircraft battery near London during the Blitz. He inherited the baronetcy on his father's death in 1942. The same year, he took command of the 180th Heavy Anti-Aircraft Regiment in 1942, based in Scotland. He took his unit to join the air defences of Plymouth before D-Day in 1944. He received a military OBE. He continued to serve with the Territorial Army after the war, being awarded the Territorial Decoration and the rank of honorary colonel.
He continued to work in insurance for a short period after the war, but then returned to manage the neglected family estates in Essex, which he had inherited in 1942. He was president of the Country Landowners' Association from 1957 to 1959, and was a co-founder of the CLA's annual Game Fair in 1958.