Abdurrahman Fatalibeyli (birth surname Dudanginski,[1] (Russian: Абдулрахман Фаталибейли-Дудангинский, Azerbaijani: Ədrürrəhman bəy Fətəlibəyli-Düdənginski) or Abo Alioglu Fatalibeyli-Dudanginsky[2] Або Алиевич Дудангинский / Əbo Əliyeviç Düdənginski), born Abo Dudanginski (12 June 1908 – 22 November 1954), was a Soviet army major who defected to the German forces during World War II.

[3] His classmate from the Chief of Staff Academy years future Marshal of Soviet Union, Minister of Defense of USSR Andrey Grechko said the following about Fatalibeyli: "He possessed with incredibly sharp intelligence and analytical thinking.

[5] After (or during) imprisonment in Poland, he joined the Wehrmacht and became an interpreter of SD officer and the deputy commander of the Einsatzgruppe D SS-Obersturmführer Heinz Schubert in North Caucasus, but according to Cabbar Ertürk who was elected as the responsible for cultural affairs of the Azerbaijan National Committee in Berlin, his "Turkish language" was poor.

While fighting guerrilla attacks, he received the Iron Cross and promoted to major of the German military in 1943[citation needed].

He was head of the "Azerbaijan National Committee" and one of the architects of the Azerbaijani Legion[8] helped by Mohammad Amin al-Husayni, Mufti of Jerusalem, and several Moslem collaborators, such as Ali Khan (North Caucasus) Dr. Szymkewicz, mufti of the Ostland zone occupied by the Germans (Poland and occupied areas of the USSR), and Mohammed Al Gazani, Muslim poet and one of the chiefs of the anti-Soviet Moslem Union[citation needed].

A dispatch dated 16 November 1943, mentioned specifically that this conference had been followed "by the Mufti of Jerusalem" and "the representatives of the peoples of the Caucasus, the Ural and Turkestan."