Flying Regiment 5 ( or LeR 5) was a mixed fighter and bomber aircraft regiment of the Finnish Air Force during World War II. The regiment took part in the Continuation War and the Lapland War. The regiment was formed around the No. 6 Sqn, which previously had been subordinated the Finnish Navy HQ, and tasked with anti-submarine and maritime patrols. The No. 30 Sqn was a fighter squadron. The regiment was responsible for the air defence of Southern Finland and of the western Gulf of Finland.