The Guild of Natural Science Illustrators-Northwest (GNSI-NW) is a non-profit organization of artists in the Pacific Northwest that focus on illustrating the natural world.  GNSI-NW provides members with learning and networking opportunities through quarterly meetings, workshops, and exhibitions.

The training and interests of GNSI-NW members are in both science and art. They study sciences including biology, botany, zoology, archeology, medicine, marine life, and ecology. Their tools and techniques for visual communication include drawing, painting, and digital media. 

Applying scientific discipline to creativity, members strive to produce images rendered with scientific accuracy and artistic integrity, and to share those images with the public so that others may understand and appreciate both the science and the art. 

Founded in 1979, the Northwest chapter of the Guild of Natural Science Illustrators was the first chapter formed following the creation of the national guild (http://www.gnsi.org/) in 1966 by a small group of artists based at the Smithsonian Institute in Washington, DC.  GNSI now has chapters worldwide.