Concordia (a city and municipality in Sinaloa, Mexico).; Concordia (a municipality in Olancho department, Honduras).; Concordia (a town and municipality in Antioquia department, Colombia).; Concordia (a town and municipality in Magdalena department, Colombia).; Concordia (a department and city in Entre Ríos province, Argentina).
Democratic Republic of the Congo (a country in Central Africa, larger and to the east of the Republic of the Congo); Republic of the Congo (a country in Central Africa, smaller and to the west of the Democratic Republic of the Congo); Congo (a major river in Central Africa which flows for about 4,380 km (2,720 miles) to the Atlantic Ocean in the Democratic Republic of the Congo, at times forming the border with the Republic of the Congo and Angola)
Constantinople (the former name, from 330–1930 C.E., of Istanbul, the largest city in Turkey; the former capital of the Ottoman Empire and of the Byzantine Empire before that)
Constitución (a neighbourhood in central Buenos Aires, Argentina).; Constitución (a department of Santa Fe province, Argentina).; Constitución (a city and commune in Talca province, Maule region, Chile).; Constitución (a department of Chile).
a province of Bolivia, see Cordillera Province (Bolivia); a province of Chile, see Cordillera Province, Chile; a department of Paraguay, see Cordillera Department