infobox Book |
name = The Wanderer
title_orig =
translator =


image_caption = Cover of first edition (paperback)
author = Fritz Leiber
illustrator =
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country = United States
language = English
series =
genre = Science Fiction novel
publisher = Ballantine Books
release_date = 1964
english_release_date =
media_type = Print (Hardcover & Paperback)
pages = 318 pp
isbn = NA
preceded_by =
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"The Wanderer" (ISBN 1-58586-049-2) is the title of a science fiction novel by Fritz Leiber about a wandering planet that enters the solar system. It won the 1965 Hugo Award for Best Novel.

The book is obviously a variation on the classic short story "The Star" by H.G.Wells which describes the passage of a wandering star near Earth and its devastating consequences. However, by substituting a wandering planet for a star, and making that planet inhabited, Leiber made possible additional story lines not available in the original.

The narrative follows multiple disconnected groups of characters to portray the widespread impact of the Wanderer on the entire population of the Earth (and above it) as well as the varied reactions of different groups as they struggle to cope and surivive.