Operation Gisela (German: Unternehmen Gisela) was the codename for a German military operation of the Second World War. Gisela was designed as an aerial intruder operation to support the German air defence system in its night battles with RAF Bomber Command during the Defence of the Reich campaign. It was the last major operation launched by the Luftwaffe Nachtjagdgeschwader (Night Fighter Wings) during the conflict.