John Lloyd Broome (1824 in New York City – 1898 in Binghamton, Broome County, New York) was an officer in the United States Marine Corps during the Mexican-American War. He was the grandson John Broome, Lieutenant Governor of New York. He was commissioned a Second Lieutenant in the Marine Corps in 1848. His 40 years of service included action at Veracruz, Alvarado, and Laguna del Carmen, Mexico, (1848). As senior Marine officer of the West Gulf Blockading Squadron, he played a prominent part in the capture of New Orleans and all engagements of the Squadron on the Mississippi River. He was twice wounded; severely, at the second Battle of Vicksburg.