Mustapha ibn Muhieddine (1814–1863; Arabic: مصطفى ابن محيي الدين Mustafa ibn Muḥy al-dīn), known as Emir Mustapha, Sidi Moustafa, Moustafa El Hassani El Djazairi, was an Algerian religious and military leader who led a struggle against the French colonial invasion in the mid-19th century with his brother, Emir Abdelkader.