Mystery Writers of America is the leading association for professional crime writers in the United States. Members of MWA include most major writers of crime fiction and non-fiction, as well as screenwriters, dramatists, editors, publishers, and other professionals in the field. It welcomes everyone who is interested in mysteries and crime writing to join MWA.

Founded in 1945, MWA is a storied organization with a golden past and an exciting present. Each spring, it presents the Edgar® Awards, widely acknowledged to be the most prestigious awards in the genre. It sponsors MWA Literacy to help rebuild libraries around the US as well as numerous symposiums and events designed to enlighten and inform authors and fans alike.