Gilbert is the name of some places in the United States of America:

• Gilbert, Arizona
• Gilbert, Iowa
• Gilbert, South Carolina
• Gilbert, West Virginia

Gilbert is also the name of:

• Gilbert of Narbonne, a Goth count of Narbonne (8th century)
• William S. Gilbert of Gilbert and Sullivan

• Gilbert was a character in the comic Sandman by Neil Gaiman; the character was based on writer Gilbert K. Chesterton, although with some characteristics of his colleague C. S. Lewis.

In physics, the gilbert (symbol: G) is a former unit of magnetomotive force or magnetic potential named in honor of scientist William Gilbert.

It is defined as 1 oersted centimeter.

It is equivalent to 1.25664 ampere-turns (AT).