James Riely Gordon (August 2, 1863 – March 16, 1937) was an architect who practiced in San Antonio until 1902 and then in New York City, where he gained national recognition. J. Riely Gordon is best known for his landmark county courthouses, in particular those in Texas. Working during the state's "Golden Age" (1883–1898) of courthouse construction, Gordon saw 18 of his designs erected from 1885 to 1901; today 12 remain.