The Rumpler D.I (factory designation 8D1) was a fighter-reconnaissance aircraft produced in Germany at the end of World War I.

[1] It was a conventional single-bay biplane with wings of unequal span braced by I-struts.

[2] The upper wing was fitted with aerodynamically balanced ailerons and fuselage had an oval cross-section.

[2] Another one participated in the follow-on competition in autumn, this time with a BMW engine.

[2] The Idflieg approved the type for production and issued the designation D.I, but only a small number were produced; the war was practically over and none saw operational service.