The Nebula Awards #18 is an anthology of science fiction short works edited by American writer Robert Silverberg.

It was first published in hardcover by Arbor House in October 1983; a paperback edition with cover art by Gary LoSasso was issued by Bantam Books in September 1984.

[1] The book collects pieces that won or were nominated for the Nebula Awards for novel, novella, novelette and short story for the year 1983, together with an introduction by the editor and list of past winners.

Barbara A. Bannon in Publishers Weekly rated the award-winning pieces collected in the anthology highly, and noted that "[a]s good as those works are, perhaps equally impressive is the quality of the nominees that didn't win."

She complimented Russ's, Malzberg's and Sterling's pieces individually, citing the last as "one of the best stories ever about living with aliens," as well as calling those by Silverberg and Gibson "[f]ine stories" that "complete the volume at the same high level.