Thomas Gatch may refer to:-
Thomas Benton Gatch (1841–1933), Confederate Army officer in the American Civil War and post-war politician and businessman Thomas M. Gatch (1833–1913), president of Willamette University, Oregon Agricultural College (Oregon State University), and the University of Washington Thomas Leigh Gatch (1891–1954), American vice admiral, judge advocate general of the Navy and attorney, grandson of Thomas M. Gatch Thomas Leigh Gatch, Jr. (1925–1974), son of the vice admiral, disappeared while attempting to make the first Transatlantic crossing by a balloon