Maciej (Suleyman bey) Sulkiewicz (Belarusian: Мацей Аляксандравіч Сулькевіч, romanized: Maciej Aliaksandravič Sulkievič, Azerbaijani: Süleyman bəy Sulkeviç, Russian: Матвей (Магомет) Сулькевич, romanized: Matvey (Magomet) Sulkevich; 20 June 1865 – 15 July 1920) was an Imperial Russian lieutenant general, Prime Minister of Crimean Regional Government (1918), and Chief of General Staff of Azerbaijani Armed Forces in 1918–20.

Born to parents of Lipka Tatar origin, he changed his name to Mohammad after settling in Azerbaijan Democratic Republic, but in Azerbaijan he is still known as Suleyman bey Sulkiewicz and Mammad bey Sulkiewicz.

After the Russo–Japanese War, he remained in the Asian portion of Russia serving in the Irkutsk Military District.

In the late 1917 Sulkiewicz was involved in creation of the 1st Muslim Army Corps, yet remained at the service of the Russian Romanian Front administration.

After the end of World War I and withdrawal of the Central powers troops out of Crimea in late 1918, Sulkiewicz moved to Azerbaijan and became Chief of Staff of Azerbaijani Armed Forces of ADR on 26 March 1919.