Henry Clay Folger, American businessman and philanthropist, founded the Folger Shakespeare Library (died 1930)

Henry Clay Folger Jr. was an American businessman who was president and later chairman of Standard Oil of New York, a collector of Shakespeareana, and founder of the Folger Shakespeare Library.

The Folger Shakespeare Library is an independent research library on Capitol Hill in Washington, D.C., United States. It has the world's largest collection of the printed works of William Shakespeare, and is a primary repository for rare materials from the early modern period (1500–1750) in Britain and Europe. The library was established by Henry Clay Folger in association with his wife, Emily Jordan Folger. It opened in 1932, two years after his death.