James Calvin McDearmon (June 13, 1844 – July 19, 1902) was an American politician and a member of the United States House of Representatives for the 9th congressional district of Tennessee.

McDearmon was born on June 13, 1844, in New Canton, Virginia in Buckingham County.

He was wounded twice during the war at Murfreesboro and at Franklin and surrendered with Johnston's Army at Greensboro, North Carolina.

[2] After the war, McDearmon studied law, was admitted to the bar in 1867, and commenced practice in Trenton, Tennessee.

He was married, Dec. 4, 1867, to Theodora, daughter of M. T. McCulloch of Hayward county, Tenn.[3] McDearmon died in Trenton, Tennessee in Gibson County on July 19, 1902 (age 58 years, 36 days).