Komdiv (Russian: комдив) is the syllabic abbreviation to commanding officer of the division (Russian: командир дивизии, romanized: komandir divizii; lit.

It was also the designation to military personnel appointed to command a division sized formation (XX).

Until 1940, it was the fourth highest military rank of the Red Army, and was equivalent to Division commissar (дивизионный комиссар) of the political staff in all military branches, Flag Officer 2nd rank (Russian: флагман 2-го ранга, romanized: flagman 2-go ranga) in the Soviet navy, or to 'senior major of state security' (старший майор государственной безопасности).

This particular rank was introduced by disposal of the Central Executive Committee of the Soviet Union and the Council of People's Commissars, from September 22, 1935.

This article on a military rank or appointment is a stub.