Cazadero (Spanish for "hunting ground") is an unincorporated community and census-designated place (CDP) in western Sonoma County, California, United States with a population of 354 in 2010.

Cazadero Highway parallels Austin Creek, which is a principal tributary of the lower Russian River.

Cazadero was the northern terminus of the North Pacific Coast Railroad, originally laid as narrow-gauge track in the 1870s.

Local legend holds that much of San Francisco was rebuilt after the disastrous April 1906 earthquake and fire using redwood and other lumber from the Cazadero area.

The principal tributary in the area is Kidd Creek, which finds its source on the southeast slopes of Pole Mountain which rises to approximately 2,204 feet (672 m) just a few miles from the Pacific coastline.

The rapid rise in elevation from the coast to mountains west of Cazadero ensures that the area receives substantial rainfall as Pacific storms come onshore in spring and winter, releasing rain from clouds saturated with ocean moisture.

Cazadero receives an average of 85 in (2,200 mm) of rain a year, and is reputed to be the second-wettest town in California, after Gasquet.

[3] According to the United States Census Bureau, the CDP covers an area of 7.1 square miles (18.4 km2), 99.98% of it land and 0.02% of it water.