Scrub oak is a common name for several species of small, shrubby oaks. It may refer to:

• the Chaparral plant community in California, or to one of the following species.

In California

• California scrub oak (Quercus berberidifolia), a widespread species commonly referred to as scrub oak

• Coastal scrub oak (Quercus dumosa), although currently defined in a narrow sense, has been applied to other scrub oaks now considered separate species

• Other California species referred to as "scrub oaks"

• Leather oak (Quercus durata)

• Tucker oak (Quercus john-tuckeri)

• Island scrub oak (Quercus pacifica)

In the Southwestern United States

• Coahuila scrub oak (Quercus intricata), in the US, it is reported at only two sites: One in the Chisos Mountains inside Big Bend National Park, and the other 15 miles SW of Van Horn.

• Gambel oak (Quercus gambelii)

• Gray oak (Quercus grisea), in the mountains of the southwestern United States and northern Mexico.

• Emory oak (Quercus emoryi)

• Pungent oak (Quercus pungens)

• Sonoran scrub oak (Quercus turbinella)

In the Northeastern United States

• Bear oak (Quercus ilicifolia)

• Britton's Oak (Quercus ×brittonii), a hybrid of Bear oak (Quercus ilicifolia) and Blackjack oak (Quercus marilandica)

• Dwarf Chinkapin (Quercus prinoides), distribution extends to Midwest and South-Central U.S.

In the Southeastern United States

• Chapman oak (Quercus chapmanii)

• Myrtle oak (Quercus myrtifolia)

• Sandhill oak (Quercus inopina)

• Sand live oak (Quercus geminata)

• Turkey oak (Quercus laevis)

See also Florida scrub

Europe

• Kermes oak (Quercus coccifera)

• Gall oak (Quercus lusitanica)

Others

• Santa Cruz Island oak (Quercus parvula)