James Clark Strong (May 26, 1826–1915) was a breveted American Civil War general and prominent New York attorney in the post-war period. An advocate for Native Americans, he litigated That Portion of the Cayuga Indians Residing in Canada v. State (N.Y. 1885) and Seneca Nation of Indians v. Christy (U.S. 1896) on behalf of the Cayuga and Seneca, respectively, two of the earliest litigations of aboriginal title in New York.