Details of nominees can be found on the SFWA 1994 Nebula Awards page.
Mike Resnick Seven Views of Olduvai Gorge
Winner Best Novella
Ben Bova Inspiration
Joe Haldeman None So Blind
Damon Knight Fortyday
David Gerrold The Martian Child
Winner Best Novelette
Barry Malzberg Understanding Entropy
Kate Wilhelm I Know What You’re Thinking
Martha Soukoup A Defense of the Social Contracts
Winner Best Short Story
Ursula K. Le Guin The Matter of Seggri