Moses B. Walker (16 July 1819 – 17 December 1895) was a Union Army officer during the American Civil War.

[1] Walker was mustered out of the volunteers on 20 July 1865 and retired from the Regular Army (United States) 19 February 1866.

[1] He was promoted to colonel on the regular army retired list on 28 July 1866.

[1] On 13 January 1866 the President of the United States Andrew Johnson nominated Walker for appointment to the grade of brevet brigadier general of volunteers, to rank from 27 March 1865.

[3] In 1868, after losing an election to the U.S. House of Representatives, he began participating in the military occupation of Texas.