Geoscientist may refer to:

Geoscientist, a person studying Earth or other planets using Earth science Geochemist (see Geochemistry) Geologist, a scientist who studies the solid, liquid, and gaseous matter that constitutes the Earth and other terrestrial planets Geophysicist (see Geophysics) Planetologist (see Planetary science) Geoscientist (magazine), the official membership magazine of the Geological Society of London