The Grand Mosque of Constanța, originally known as the Carol I Mosque, is a mosque in Constanța, Romania. It is listed as an historic monument by the Romanian National Institute of Historical Monuments.
Location: 1 Crângului Street · Constanța, Romania
Completed: 1913
Affiliation: Sunni Islam
Year consecrated: 1913
Architect(s): Victor Ștefănescu
Style: Neo-Egyptian & Neo-Byzantine · elements of Neo-Romanesque