Five-Odd is an anthology of science fiction novelettes edited by Groff Conklin.

It was first published in paperback by Pyramid Books in August 1964; it was reprinted in June 1971.

The first British edition was published under the alternate title Possible Tomorrows in hardcover by Sidgwick & Jackson in June 1972; a paperback edition was issued by Coronet under the same title in September 1973.

[1] The book collects one novella, three novelettes and one short story by various science fiction authors, together with an introduction by the editor.

The stories were previously published from 1954-1961 in various science fiction magazines.