Islands of Space is a science fiction novel by American writer John W. Campbell It was first published in book form in 1957 by Fantasy Press in an edition of 1,417 copies.

The novel originally appeared in the magazine Amazing Stories Quarterly; the text was "extensively edited" for book publication, with Campbell's approval, by Lloyd Arthur Eshbach.

[2] Islands of Space is generally credited with introducing the concepts of hyperspace and the warp drive to science fiction.

Theodore Sturgeon, reviewing the Fantasy Press edition, wrote "This is a real lousy book", faulting its lack of characterization, suspense, and plot, and a writing style "such as would dry up the purple blood of the sleaziest fan magazine".

[7] E. F. Bleiler described the original text as "Greatly overloaded with unnecessary (although at times ingenious) exposition, hence almost unreadable; weak novelistically; and clichéd in its action plot.