Dryas may refer to:
Biology Dryas (plant), a genus of plants Dryas, a monotypic genus of butterflies containing the single species Dryas iulia Dryas monkey (Cercopithecus dryas), a little-known species of guenon found only in the Congo Basin
Geology Dryas, the name of several climatic periods, named for their abundant dryas flowers: Oldest Dryas Older Dryas Middle Dryas Younger Dryas
Other uses Dryas (mythology), several characters in Greek mythology Drias, Kavala, or Dryas, a village in Greece
See also Dryad (disambiguation)