WESTAF (Western States Arts Federation) is a regional nonprofit arts service organization based in Denver, Colorado. With a focus on the West, WESTAF aims to strengthen the financial, organizational, and policy infrastructure of the arts in the region. They support state arts agencies, arts organizations, and artists in their mission to serve diverse audiences and enrich local communities through access to the arts and arts education.

WESTAF offers innovative programming, advocacy, research, technology, and grantmaking to encourage the creative advancement and preservation of the arts. They prioritize supporting independent artists and arts organizations through funding, technology, and services. Additionally, WESTAF amplifies voices by assisting rural, BIPOC, LGBTQ+, and disabled artists in preserving traditions, strengthening programs, and finding new audiences.

Through their initiatives, partnerships, and practices, WESTAF leads by example, embracing change, measuring success through positive outcomes, and fostering inclusivity, collaboration, and innovation