Carman Adam Newcomb (July 1, 1830 – April 6, 1902) was a nineteenth-century politician, lawyer, judge and marshal from Iowa and Missouri.

[1] Born in Mercer, Pennsylvania, Newcomb completed preparatory studies and moved to Kentucky.

He later moved to Shreveport, Louisiana, where he studied law and was admitted to the bar.

He moved again to West Union, Iowa in 1854 and commenced practicing law.

[1] At the outbreak of the Civil War, Newcomb served as captain of Company F in the 3rd Iowa Volunteer Infantry Regiment from 1861 until his discharge on account of illness in 1862.