Brooks is an unincorporated community in Marion County, Oregon, United States. For statistical purposes, the United States Census Bureau has defined Brooks as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name. As of the 2020 census the population was 472. Brooks is part of the Salem Metropolitan Statistical Area.

Marion County is one of the 36 counties in the U.S. state of Oregon. The population was 345,920 at the 2020 census, making it the 5th most populous county in Oregon. The county seat is Salem, which is also the state capital of Oregon. The county was originally named the Champooick District, after Champoeg, a meeting place on the Willamette River. On September 3, 1849, the territorial legislature renamed it in honor of Francis Marion, a Continental Army general from South Carolina who served in the American Revolutionary War.