Royal Prussian Jagdstaffel 43, commonly abbreviated to Jasta 43, was a World War I "hunting group" (i.e., fighter squadron) of the Luftstreitkräfte, forerunner to the Luftwaffe. The unit would score over 35 aerial victories during the war, including two observation balloons downed. The squadron's victories came at the expense of six killed in action, five wounded in action, two injured in accidents, and one taken prisoner of war.