The Mil Mi-8 (NATO reporting name "Hip") is a medium twin-turbine transport helicopter that can also act as a gunship. The first single-engine (AI-24W) prototype, W-8, flew in 9 July 1961.

A second one with two AI-24W engines made its first flight on 17 September 1962. After few changes it was introduced into the Soviet Air Force by 1967 as Mi-8.

There are numerous variants, including the Mi-8T which in addition to carrying 24 soldiers is also armed with rockets and anti-tank guided missiles. The naval Mil Mi-14, and attack Mi-24 are derived from the Mi-8.

The Mi-8 is used by over 50 countries, including India, China and Iran; the latest variant, known as the Mi-8MT is more heavily armed and was introduced in 1981. The export version of this aircraft Mil Mi-17 , employed by around 20 countries.

The Finnish Defence Forces and the Finnish Border Guard have been using Mi-8s since the 1970s. Four Mi-8s are still in service, since deliveries of NH90 helicopters have been delayed for more than 3 years due to delays in the type approval certificate.