John McNulta (November 9, 1837 – February 22, 1900) was a U.S. Representative from Illinois.

Born in New York City, McNulta pursued an academic course and visited the West Indies and Europe.

He moved to Attica, Indiana, in 1853 and to Bloomington, Illinois, in 1859.

During the Civil War, McNulta served in the Union Army with the 1st Regiment Illinois Volunteer Cavalry and the 94th Illinois Volunteer Infantry Regiment.

He died in Washington, D.C., on February 22, 1900, and is interred in Evergreen Cemetery, Bloomington, Illinois.