The Penguin Companion to Literature is a reference work published in four volumes by Penguin Books.

Volume 1 was edited by David Daiches and deals with British and Commonwealth literature. It has been called the most useful recent work of its kind.^[1] Volume 2, published in 1969, was edited by Anthony Thorlby and deals with the literature of Continental Europe since the fifth century AD. Volume 3 deals with the literature of the United States and Latin America. Volume 4, edited by D R Dudley and D M Lang deals with Classical, Byzantine, Oriental and African literature.

The Penguin Companion to World Literature was published by McGraw-Hill. The volumes were titled The Penguin Companion to English Literature,^[2] The Penguin Companion to European Literature,^[3] The Penguin Companion to American Literature,^[4] and The Penguin Companion to Classical, Oriental and African Literature.^[5]