, Vernon L. (Louis) (1871–1929), a United States literary critic and educator. His Main Currents in American Thought (3 volumes, 1927–30) examines, from the viewpoint of a Jeffersonian liberal, American ideas and economic influences as expressed in literature. The first two volumes were awarded the Pulitzer Prize for history in 1928. The third volume, left incomplete, was edited by E. H. Eby, who contributed a memoir of the author.

Parrington was born in Aurora, Illinois. After graduating from Harvard and receiving an M.A. from the College of Emporia, Kansas, he taught at Emporia from 1893 to 1897. He taught at the University of Oklahoma, 1897–1908, and the University of Washington, 1908–29.