The flag of the U.S. state of Pennsylvania consists of a blue field on which the state coat of arms is displayed.
Design specifications
thumb|200px|A Pennsylvania flag depicted in The Government of the People of the State of Pennsylvania (1902)
The state flag of Pennsylvania was established by an act approved on June 13, 1907 (P.L. 560, No. 373), which defined the official flag of the Commonwealth as follows: