John Arthur Douglas Bloomfield, 2nd Baron Bloomfield was a British peer and diplomatist.

Lieutenant General Benjamin Bloomfield, 1st Baron Bloomfield was a British Army officer who saw action at the Battle of Vinegar Hill in June 1798 during the Irish Rebellion. He was Member of Parliament (MP) for Plymouth from 1812 from 1818 and served as Private Secretary to the Sovereign from 1817 to 1822 before becoming Commanding Officer of Woolwich Garrison in 1826.