Quercus aculcingensis is a species of oak endemic to eastern Mexico.

It is a shrub, growing up to 3 meters tall and occasionally to 5 meters. It grows in the northern Sierra Madre de Oaxaca of Veracruz state, at 2,200 meters elevation. It is named for the town of Acultzingo.

Some authorities treat the species as a synonym of Quercus greggii.

...