Johannes "Hannes" Seifert was a German Luftwaffe military aviator and fighter ace during World War II. He is credited with 57 aerial victories achieved in 439 combat missions. This figure includes 11 aerial victories on the Eastern Front, and further 46 victories over the Western Allies, including three four-engined bombers.

Pinneberg is a town in the federal state of Schleswig-Holstein in northern Germany. It is the capital of the district of Pinneberg and has a population of about 43,500 inhabitants. Pinneberg is located 18 km northwest of the city centre of Hamburg.