James Benjamin Blish () was an American science fiction and fantasy writer. He is best known for his Cities in Flight novels and his series of Star Trek novelizations written with his wife, J. A. Lawrence. His novel A Case of Conscience won the Hugo Award. He is credited with creating the term "gas giant" to refer to large planetary bodies.
Blish was a member of the Futurians. His first published stories appeared in Super Science Stories and Amazing Stories.
Blish wrote literary criticism of science fiction using the pen name William Atheling Jr. His other pen names included Donald Laverty, John MacDougal, and Arthur Lloyd Merlyn.
Blish was born on May 23, 1921, at East Orange, New Jersey. While in high school, Blish self-published a fanzine, called The Planeteer, using a hectograph. The fanzine ran for six issues. Blish attended meetings of the Futurian Science Fiction Society in New York City during this period.
Futurian members Damon Knight and Cyril M. Kornblut