Flag of Ohio

State of Ohio
	The Ohio Burgee
Use	Civil and state flag
Proportion	8:13
Adopted	May 9, 1902
Design	A Guidon constituting five horizontal stripes alternating between red and white. The chevron is azure containing a white and red "O" and 17 white stars.
Designed by	John Eisenmann

The Ohio Burgee is the official flag of the U.S. state of Ohio. It is a triangular swallowtail flag. Its red, white, and blue elements symbolize the state's natural features and order of admission into the Union. A prominent disc in the flag's triangular canton is suggestive of the state's name. The flag was adopted in 1902.

The flag was designed in 1901 by John Eisenmann for the Pan-American Exposition and adopted in 1902. Before that, for nearly a century after statehood, Ohio did not have a legally authorized state flag. One unsuccessful proposal had called for a design based on the state seal.

Ohio has adopted an official salute to the flag and the official folding procedure gives it 17 folds. The Ohio flag has influenced a number of logos and municipal flags within the state. A scarlet-colored gubernatorial flag is based on the state seal.