Paradise Lost is an epic poem in blank verse by the 17th-century English poet John Milton. It was originally published in 1667 in ten books, with a total of over ten thousand individual lines of verse.

The poem concerns the Biblical story of the Fall of Man: the temptation of Adam and Eve by the fallen angel Satan and their expulsion from the Garden of Eden. Milton's purpose, stated in Book I, is to "justify the ways of God to men." Paradise Lost is often considered one of the greatest literary works in the English language.