Quercus (disambiguation)

Quercus or oak, is a genus of trees and shrubs.

Quercus may also refer to:

Organization

 * Quercus (organization), a Portuguese association for the conservation of the natural environment
 * Quercus (publisher), a British publishing house
 * Quercus, developer of a Rexx interpreter

Other uses

 * Quercus (software), a Java implementation of the PHP language
 * Quercus (album), a 2013 album by June Tabor, Huw Warren & Iain Ballamy