Manchuria Aviation Company[1][2][3] (traditional Chinese/Kyūjitai: 滿洲航空株式會社; simplified Chinese: 满州航空株式会社; Shinjitai: 満州航空株式会社; Hanyu Pinyin: Mǎnzhōu Hángkōng Zhūshì Huìshè; Wade–Giles: Man3-chou1 Hang2-k'ung1 Chu1-shih4 Hui4-she4 Japanese Hepburn: Manshū Kōkū Kabushiki-gaisha, "MKKK") was the national airline of Manchukuo.

In 1936, an "Independent Volunteer Battalion" of the MKKK consisting of 13 aircraft fought on the side of the Inner Mongolian Army against Kuomintang-held Suiyuan.

[4] The airline had a "hub" in Xinjing and was linked by regular flight routes from Harbin, Shamussi (Jiamusi), Jilin, Mukden, Andong, Jinzhou, Chengde, Qiqihar, Hailar, and the Kwantung Leased Territory and Korea areas, for connections with Imperial Japanese Airways (Dai Nippon Koku KK) to Japan itself or foreign routes.

In May 1937, MAC established a subsidiary, Kokusai Koku, to open a long-distance route between Hsinking and Berlin using two German Heinkel He 116 aircraft, in bilateral partnership with Lufthansa.

Remaining aircraft, goods and equipment were confiscated, to the benefit of the Soviet Union and Chinese Communist Party, after the conflict.