George Henry Weiss (1898–1946) was an American poet, writer and novelist. His science fiction stories and poetry appeared under the pseudonym "Francis Flagg" in the magazines Amazing Stories, Astounding, Tales of Wonder, Weird Tales and others. His novel The Night People was published by Fantasy Publishing Company, Inc. in 1947.

• The Machine Man of Ardathia, Amazing Stories, November 1927.
• The Mentanicals, Amazing Stories, April 1934.
• Earth's Lucky Day (with Forrest J. Ackerman), Wonder Stories, March 1936.
• The Seeds of the Toc-Toc Birds
• The Heads of Apex

• The Night People (1947)

• Clute, John; Peter Nicholls (1995). The Encyclopedia of Science Fiction. New York: St. Martin's Griffin. p. 432. ISBN 0-312-13486-X.
• Tuck, Donald H. (1978). The Encyclopedia of Science Fiction and Fantasy. Chicago: Advent. p. 448. ISBN 0-911682-22-8.

• Works by George Henry Weiss at Project Gutenberg
• Works by or about George Henry Weiss at the Internet Archive
• Works by George Henry Weiss at LibriVox (public domain audiobooks)
• Francis Flagg (pseudonym) at the Internet Speculative Fiction Database