Liam Callanan is an American author of fiction and nonfiction. His work has been published in The New York Times, The Wall Street Journal, The Washington Post, NPR, and other outlets. He is the author of the novel The Cloud Atlas, which was a finalist for the PEN/Faulkner Award and the Dayton Literary Peace Prize. He also wrote the memoir All Saints: A Family Story from Southie, which was a Barnes & Noble Discover Great New Writers selection.