The Fagen Fighters WWII Museum is an aviation museum located in Granite Falls, Minnesota.
Museum founder Ron Fagen bought his first warbird, a P-51, in 1994. Then, in 1998, he established Fagen Fighters Restoration. However, the museum itself was only founded in 2012.
In May 2016, the museum unveiled a boxcar used in the deportation of Jews during the Holocaust it had acquired from Georgenthal, Germany.
A tornado that struck the airport in July 2016 damaged a number of other buildings, but did not affect the museum.
In 2017, the museum purchased a collection of spare parts that belonged to collector Jay Wisler.
The museum opened a fourth hangar featuring U.S. Navy aircraft in December 2023.
In 2025, the museum acquired an A-24 from the Lone Star Flight Museum. Later that year it acquired a P-39.
The museum is made up of four display hangars, a restoration hangar, a reproduction Quonset hut, and a reproduction control tower.