Quercus gambelii, with the common name Gambel oak, is a deciduous small tree or large shrub that is widespread in the foothills and lower mountains of western North America. It is also regionally called scrub oak, oak brush, and white oak.

The common and scientific names, Gambel oak and Quercus gambelii, were named after the American naturalist William Gambel (1821–1849).

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