Full details of the nominees can be found on the SFWA 1993 Nebula Awards page.
Harlan Ellison The Man Who Rowed Christopher Columbus Ashore
Joe Haldeman Graves
Winner Best Short Story
Lisa Goldstein Alfred
Charles Sheffield Georgia On My Mind
Winner Best Novelette
Connie Willis Death on the Nile
Terry Bisson England Underway
John Kessel The Franchise
Jack Cady The Night We Buried Road Dog
Winner Best Novella