Lee Valley or Lea Valley can refer to:

Greer, Arizona, an unincorporated community founded as Lee Valley Lea Valley, the valley of the River Lea (or River Lee) in England Lee Valley Park Lee Valley Athletics Centre Lee Valley Hockey and Tennis Centre Lee Valley Ice Centre Lee Valley Leisure Complex Lee Valley VeloPark Lee Valley White Water Centre Lee Valley Regional Park Authority Lea Valley, Hertfordshire, a location in Wheathampstead parish Lee Valley, Ontario, an unincorporated community in Canada Lea Valley Academy, Enfield, England Lea Valley lines, railways in England Lee Valley Tools, Canadian purveyor of woodworking and gardening tools