This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Gnome (Alchemy)
The gnome is a class of legendary creatures throughout Europe and, by cultural transfer, in the United States that has taken on many different meanings, but most generally refers to very small people, often men, that live in dark places, especially underground, in the depths of forests, or more recently in gardens. Most European ethnic groups have had some kind of gnome legends with local variations.
The depiction of gnomes has changed quite often over the years and remained different in different cultures. Originally many of them were conceived of as ugly, ground dwelling creatures that were less humanoid than the gnomes of today. In fact, they were more akin to small goblins and disfigured faeries, and acted more like animals than human beings.