The Karelia Aviation Museum () is located at Lappeenranta Airport in Lappeenranta, Finland. The museum is run by Kaakkois-Suomen ilmailumuseoyhdistys ry. The museum has also been known as the Aviation Museum of South-Eastern Finland ().
The museum is housed in two covered halls and displays fighter aircraft and smaller objects from the Second World War and onwards.
Aircraft on display include: MiG-21BIS (MG-127), Saab 35 Draken (DK-213), Saab 91 Safir (OH-SFB), as well as Jorma Kettunen's Nieuport 17 replica (OH-U323).
In 2005 the museum also had a Hawker Hurricane (HC-452) on loan from the Aviation Museum of Central Finland.
Among the smaller objects on display is a radial engine from a Fokker C.X that sank in Lake Saimaa, engine and different parts from a Tupolev SB that went down in Ylämaa.
The museum is closed during winters.