M.S.Ö. Air & Space Museum (Turkish: M.S.Ö. Havacılık ve Uzay Müzesi) is a museum in Eskişehir, Turkey, dedicated to the history of aviation and space exploration. The museum is located in the Eskişehir Airport, and was opened in 2016. The museum has a collection of over 60 aircraft, including fighter jets, bombers, transport planes, and helicopters. The museum also has a collection of engines, propellers, and other aviation equipment. The museum also has a space exhibit, which includes a replica of the Soyuz capsule, a model of the International Space Station, and a collection of spacesuits.

The museum is directly connected to the west apron at the Sivrihisar Aviation Center, where airworthy aircraft can leave the hangars at once and perform display flights. The main entrance of the museum is through the B gate of Sivrihisar Aviation Center. The museum building consists of four hangars and houses various exhibits ranging from engines to dioramas to aircraft. The building also houses the Aeronautical Information Service office and a museum store.