Gerald F. Harrington (October 8, 1890 - August 27, 1947) was an American lawyer and historian active in California in the first half of the 20th century. Harrington was born in O'Neil, Nebraska, the son of first-generation Czech immigrants. He studied at the Creighton University (1910), the University of Washington (1913), and Harvard Law School (1914). After initially practicing law in Nebraska, he relocated c. 1930 to Oakland, California. He was a hobbyist big game hunter and rare book collector. He was also an authority on the Pony Express, publishing articles in several magazines and producing several historical maps. He died tragically from a streetcar accident in Oakland.