Gulf Fisheries Fairness Act - Amends the Magnuson-Stevens Fishery Conservation and Management Act to provide each of the states of Texas, Louisiana, Mississippi, Alabama, and Florida with exclusive fishery management authority over reef fish: (1) within the exclusive economic zone in the Gulf of Mexico in waters of a specified average depth on a continuous line within a minimum distance of nine nautical miles from the baseline from which the territorial sea of the United States is measured, and (2) between projected jurisdictional lines determined by the President under the Outer Continental Shelf Lands Act.

Directs the Secretary of Commerce to publish a description and map of the applicable line along the coasts of such states.

Prohibits the Secretary from suspending, revoking, terminating, or otherwise limiting the authority of any person under federal law to engage in fishing based on the person fishing for Gulf reef fish in waters subject to the exclusive authority of such states.

Exempts such waters from specified federal regulatory requirements addressing fishery permits.