Nachtjagdgeschwader 4 (NJG 4) was a Luftwaffe night fighter-wing of World War II.

NJG 4 was formed on 18 April 1941 in Metz.

The unit's objective was to counter RAF Bomber Command's strategic night-bombing offensive.

The unit's commanding officers included Oberstleutnant Wolfgang Thimmig (October 1943 – November 1944) and Major Heinz-Wolfgang Schnaufer (20 November 1944 – 8 May 1945).