Ernest Howard Crosby (1856 – 1907) was an American reformer, georgist, and author. He was educated at New York University and the Columbia Law School and served on the New York State Assembly. From 1889 to 1894, he was judge of the Court of the First Instance at Alexandria, Egypt. Crosby became an exponent of the theories of Count Tolstoy, whom he visited before his return to America; his relations with the great Russian later ripened into intimate friendship, and he devoted himself in America largely to promulgating Tolstoy's ideas of universal peace.