Gilbert Neil Mendones, alias used by the sentient dream-location Fiddler's Green in the comic Sandman by Neil Gaiman. His appearance is based on that of G. K. Chesterton.

Gilbert Bates, Beavers's friend from the American TV series Leave It To Beaver.

Gilbert, minor character in the Pokémon Chronicles

Hurricane Gilbert, destructive hurricane in the Caribbean 1988

Gilbert, Arizona, town in Maricopa County, Arizona, USA

Gilbert Grape, title character from the film What's Eating Gilbert Grape.

Gilbert's syndrome, genetic disorder of bilirubin metabolism

Gilbert Islands, chain of atolls and islands in the Pacific Ocean

Gilbert, Minnesota, town in St. Louis County, Minnesota, USA

Gilbert, Iowa, town in Story County, Iowa, USA

USS Gilbert Islands (CVE-107), escort aircraft carrier of the U.S. Navy during World War II

Gilbert's Skink, lizard (Eumeces gilberti) of the family of skinks

Gilbert (lunar crater), impact crater on the Moon

Gilbert-Einasleigh River, river system in northern Queensland, Australia

Gilbert, West Virginia, town in Mingo County, West Virginia, USA

Gilbert, South Carolina, town in Lexington County, South Carolina, USA

Gilbert, Arkansas, town in Arkansas, USA

Gilbert Creek, West Virginia, census-designated place in Mingo County, West Virginia, USA

Gilbert, Louisiana, town in Franklin Parish, Louisiana, USA

gilbert (symbol Gi), CGS unit of magnetomotive force or magnetic potential

Gilbert Hill, monolith column of black basalt rock in Andheri, Mumbai (Bombay), India

Gilbert Plains, Manitoba, town in Manitoba, Canada

Witton Gilbert, village in County Durham, England

Mount Gilbert (Alaska), volcano on Akun Island, Aleutian Islands

Gilbert is a masculine given name, surname and placename. It is from the Germanic gisel "hostage, pledge" and beraht "bright". Gilbert may refer to:

Gilbert Blythe, friend and eventual husband of Anne Shirley in Lucy Maud Montgomery's Anne of Green Gables series of novels.