Similar to Template:Country_flag_alias_AFG1930
 - Template:Country flag alias COL
 - Template:Country flag alias Colima
 - Template:Country flag alias Colombia
 - Template:Country flag alias Colorado
 - Template:Country flag alias COM
 - Template:Country flag alias COMECON
 - Template:Country flag alias Commonwealth of Nations
 - Template:Country flag alias Comoros
 - Template:Country flag alias Confederate States of America
 - Template:Country flag alias Connecticut
 - Template:Country flag alias Cook Islands
 - Template:Country flag alias Coquimbo
 - Template:Country flag alias Córdoba
 - Template:Country flag alias Córdoba (COL)
 - Template:Country flag alias Cornwall
 - Template:Country flag alias Corrientes
 - Template:Country flag alias Corse
 - Template:Country flag alias Costa Rica
 - Template:Country flag alias Chocó
 - Template:Country flag alias Drenthe
 - Template:Country flag alias Minsk
 - Template:Country flag alias Mogilev
 - Template:Country flag alias Sabaragamuwa
 - Template:Country flag alias CPV
 - Template:Country flag alias CPVN
 - Template:Country flag alias CRC
 - Template:Country flag alias CRI
 - Template:Country flag alias Crimea