John Gaines Miller

John Gaines Miller (November 29, 1812 – May 11, 1856) was a U.S. Representative from Missouri.

Born in Danville, Kentucky, Miller attended the common schools and was graduated from Centre College in Danville. He studied law and was admitted to the bar in 1834. He moved to Boonville, Missouri, in 1835. He served as a member of the state house of representatives in 1840.

Miller was elected as a Whig to the Thirty-second and Thirty-third Congresses and reelected as an Opposition Party candidate to the Thirty-fourth Congress, and served from March 4, 1851, until his death near Marshall, Missouri, May 11, 1856. He was interred in Mount Olive Cemetery, near Marshall, Missouri.