Tidewater may refer to:
Tidewater (region), a geographic area of southeast Virginia, southern Maryland, and northeast North Carolina. Tidewater accent, an accent of American English associated with the Tidewater region of Virginia Tidewater glacier, a classification of glacier Tidewater (marine services), a company providing marine services to the offshore petroleum industry Tidewater Middle East Co., an Iranian port operator company that belongs to IRGC Tidewater (Amtrak train), a former passenger train in Virginia Tidewater, Oregon, a settlement Tidewater Petroleum, a former name of Getty Oil Tidewater architecture, a style of architecture found mostly in coastal areas of the Southern United States Tidelands, an area affected by the tide Tidewater, Florida, a place in Florida Tidewater (marketing), a term used by industries and governments Tidewater cypress, the bald cypress (Taxodium distichum)
See also Tidelands (TV series)