Blacktop Wasteland is a noir mystery novel written by S. A. Cosby and published in July 2020 by Flatiron Books.

S. A. Cosby is a "Southern noir" crime fiction writer. He resides in Gloucester, Virginia, on the York River. Cosby has published four crime novels: My Darkest Prayer, Blacktop Wasteland, Razorblade Tears, and All the Sinners Bleed.