Cognomen C-Tin (C-Tin 
) , globally, is a rare last name. The last name C-Tin is habitual in Romania, where it is quite a rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, C-Tin is the forename as well as the last name. Parts of the name also exists independently as a first name C, and a first name Tin.
| VARIANT | COUNTRY |
|---|---|
| C-Tin | Romania, United Kingdom |
Constantijn, Constantin, Constantine, Constantino, Constantinus, Constantí, Costantino, Costantinos, Costas, Kanstancin, Kanstantin, Kanstantsin, Konsta, Konstantin, Konstantinas, Konstantinos, Konstantins, Konstanty, Konstantyn, Konstantín, Konstantínos, Konstantīns, Kosta, Kostas, Kostiantyn, Kostjantyn, Kostyantyn, Κωνσταντίνος, Κώστας, Ντίνος, Канстанцін, Константи, Константин, Константино, Константинос, Константинс, Константы, Константій, Константінос, Коста, Костантино, Костен, Костя, Костянтин, קונסטנטין, قسطنطين, كونستانتين, კონსტანტინე, and コスタ