• Underhill, the name of the first settlement on Mars in the novel
Red Mars by
Kim Stanley Robinson • Underhill, fictional character in the short story
The Rule of Names by
Ursula K. Le Guin • Underhill, an alternate reality inhabited by any multitude of fantasy creatures in
Mercedes Lackey's urban fantasy novels • Sherkaner Underhill, fictional non-human character in the novel
A Deepness in the Sky by Vernor Vinge • Underhill, Ted, fictional character in the movie
Fletch • Underhill, Mr., the name Gandalf gave
Frodo Baggins to travel under when he left Hobbiton in
The Fellowship of the Ring by
J.R.R. Tolkien ==Other==