The Bullitt Foundation is a private philanthropic foundation providing funding to nonprofit organizations working to safeguard the natural environment by promoting responsible human activities and sustainable communities in the Pacific Northwest.

The Foundation's geographic focus is Washington, Oregon, Idaho, western Montana (including the Rocky Mountain range), coastal Alaska from Cook Inlet to the Canadian border, and British Columbia. Within that broad geographic range, work is targeted to specific sub-regions generally associated with major population centers or selected rural areas experiencing significant growth pressures.