Mosque of Sidi Bou Merouane is a historic mosque located in the city of Annaba, Algeria. It was built in 1033 AD during the reign of Al-Mu'izz ibn Badis, who was the fourth ruler of the Zirids (Sanhaja Berber dynasty) in el-Maghrib el-Adna from 1016 to 1062. The mosque was named after Marwan bin Ali Al-Buni (Abu merouane), one of the most famous Muslim scholars in Annaba. The mosque has undergone many expansions and renovations throughout its long history.