Royal Prussian Jagdstaffel 4, commonly abbreviated to Jasta 4, was a "hunting group" (i.e., fighter squadron) of the Luftstreitkräfte, the air arm of the Imperial German Army during World War I.

[2] Jasta 4 was founded on 25 August 1916, drawing personnel from FFA 23 and other two-seater reconnaissance units within 2 Armee, as well as from Kampfeinsitzerkommando Vaux and Armee-Flugpark Nr.

Also during that summer, the unit suffered a partial leadership vacuum, with its commanding officer Kurt-Bertram von Döring double-tasked with command of JG 1 due to the wounding of its CO, Manfred von Richthofen.

Royal Prussian Jagdstaffel 4 passed into history on 16 November 1918, when it was disbanded at FEA 9, Darmstadt.

In early and mid-1918, it had Fokker Triplanes on strength, reportedly striped red and turquoise on wings and fuselages.