John Joseph Carty (April 14, 1861 – December 27, 1932) was an American electrical engineer and a major contributor to the development of telephone wires and related technology.
He was a recipient of the Edison Medal.
As Chief Engineer of AT&T, he was instrumental in the development of the first transcontinental telephone line.
Carty was president of the American Institute of Electrical Engineers from 1915 to 1916.