The Great Mosque of Constantine (; ) is a Sunni mosque located in the city of Constantine, in the Constantine Province of Algeria.
The Great Mosque of Constantine is located in the city centre of Constantine in Larbi Ben M'hidi Street. The construction of the mosque dates from 1135 CE, during the rule of the Hammadid dynasty, The mosque has submitted many changes, expansions and renovations during its long history. Including during the Ottoman era in 1766, and during the French occupation of Algeria.