Henry Rogers Seager (July 21, 1870 – August 23, 1930, Kiev, Russia) was an American economist, and Professor of Political Economy at Columbia University, who served as president of the American Association for Labor Legislation. Inspired by the work of the Austrian School, Seager published his main work "Principles of Economics" in 1913. Inline with the institutional economics this textbook was typical "empirical and institutional in applied work, that dealt with real markets." In 1929 he published his most cited work, entitled "Trust and corporation problems."