WESTAF, the Western States Arts Federation, is a nonprofit arts service organization dedicated to the creative advancement and preservation of the arts. Based in Denver, Colorado, WESTAF fulfills its mission to strengthen the financial, organizational and policy infrastructure of the arts by providing innovative programs and services to artists and arts organizations in the West and nationwide.

WESTAF is supported by the National Endowment for the Arts; the state arts agencies of Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming; private and corporate foundations; and individuals.