Walter Michael Miller, Jr. (January 23, 1923 New Smyrna Beach, Florida – January 9, 1996) was an American science fiction author primarily known for a single novel, A Canticle for Leibowitz, the only novel he published in his lifetime.

Writings by Miller

1959. A Canticle for Leibowitz
1997. Saint Leibowitz and the Wild Horse Woman (finished by Terry Bisson) Short stories

Roberson, W. H., and Battenfeld, R. L., 1992. Walter M. Miller, Jr.: A Bio-Bibliography.
Secrest, Rose, 2002. Glorificemus: A Study of the Fiction of Walter M. Miller, Jr.