Oh, OH or Oh! is an interjection, proclaiming surprise (emotion). It may refer to:
Ohio (listen) is a Midwestern state in the Great Lakes region of the United States. Of the fifty states, it is the 34th largest by area, the seventh most populous, and the tenth most densely populated.
The Ohio State Buckeyes football team is a college football team that competes as part of the NCAA Division I Football Bowl Subdivision, representing Ohio State University in the East Division of the Big Ten Conference.
The Ohio State University, commonly referred to as Ohio State or OSU, is a large, primarily residential, public university in Columbus, Ohio.
Ohio University is a premier primarily residential public research university in Athens, Ohio, United States.
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
The Ohlone, named Costanoan by early Spanish colonists (the Spanish word costa means "coast"), are a Native American people of the Northern California coast.
The Ohio State Buckeyes are the athletic teams that represent Ohio State University, located in Columbus, Ohio.