Allen Allensworth (7 April 1842 – 14 September 1914) was an American chaplain, colonel, city founder, and theologian. Born into slavery in Kentucky, he escaped during the American Civil War by joining the 44th Illinois Volunteers as a Union soldier. After being ordained as a Baptist minister, he worked as a teacher, led several churches, and was appointed as a chaplain in the United States Army. In 1886, he gained appointment as a military chaplain to a unit of Buffalo Soldiers in the West, becoming the first African American to reach the rank of lieutenant colonel. He served in the US Army for 20 years, retiring in 1906.