John Montgomery Glover (September 4, 1822 - November 15, 1891) was a U.S. Representative from Missouri, uncle of John Milton Glover.
Born in Harrodsburg, Kentucky, Glover attended the public schools in Kentucky. He moved to Missouri in 1836 with his parents, who settled in Knox County, near Newark, and continued his schooling. He attended Marion and Masonic Colleges, Philadelphia, Missouri. He studied law. He was admitted to the bar and commenced practice in St. Louis, Missouri. He moved to California in 1850 and continued the practice of his profession. He returned to Knox County, Missouri, in 1855 to take charge of his father's affairs. During the Civil War served as colonel of the Third Regiment, Missouri Volunteer Cavalry, from September 4, 1861, until February 23, 1864, when he resigned on account of impaired health. He served as collector of internal revenue for the third district of Missouri from December 1, 1866, until March 3, 1867.
Glover was elected as a Democrat to the Forty-third, Forty-fourth, and Forty-fifth Congresses (March 4, 1873-March 3, 1879). He served as chairman of the Committee on Expenditures in the Department of the Treasury (Forty-fifth Congress). He was an unsuccessful candidate for renomination in 1878. He engaged in agricultural pursuits. He died near Newark, Missouri, November 15, 1891. He was interred on his farm near Newark, Missouri. He was reinterred in Woodland Cemetery, Quincy, Illinois.