Men, Martians and Machines is a collection of science fiction short stories by the British writer Eric Frank Russell.

The book follows the crew of a highly advanced spaceship, (relative to the time of publishing, radio is a highly advanced technology), as it explores the universe and has several encounters with various lifeforms on different planets that inevitably become hostile.

These mini-adventures follow a prologue of sorts which gives background to the crew.

The four stories are told from point of view of a nameless sergeant-at-arms.

The title of the book was used as the title of a song by German power metal band Gamma Ray on their 1997 album Somewhere Out in Space.