Great Valley may refer to:
Places Central Valley (California), or Great Valley, or Great Central Valley, that runs through the center of California. The Great Appalachian Valley extending from Canada to Alabama Great Valley, New York, a town in Cattaraugus County, New York, USA
Pennsylvania Great Valley (Pennsylvania) Great Valley School District Great Valley Corporate Center
See also Great Rift Valley, Kenya, a major rift valley Great Rift Valley (geographical concept), a series of connected rifts in SW Asia and East Africa Great Valley Sequence, a group of geologic formations in the Central Valley of California A fictional fertile place of refuge for dinosaurs in the film The Land Before Time Great Valley Products, a computer hardware supplier