James Kennedy Moorhead (September 7, 1806 – March 6, 1884) was a Republican member of the U.S. House of Representatives from Pennsylvania.

He constructed the Monongahela Navigation Canal and was president of the company for twenty-one years.

[1] In his early political career he was a Democrat, but defected to the Know Nothings shortly after the fall elections of 1854.

[1] On March 31, 1868, he testified in the impeachment trial of President Andrew Johnson, having been called as a witness by the prosecution.

He was a delegate to the Republican National Convention in 1868, and an unsuccessful candidate for election to the United States Senate in 1880.