| Meaning | Constant, steadfast |
| Origin | Greek |
| Gender | Boy |
| Popularity | Unique |
| Length | 6 |
| Syllables | 2 |
| Syllabification | Kos-tas |
| Konstantinos |
| Konstantin |
| Constantine |
| Kostadin |
| Kostya |
| Kosta |
| Kostandinos |
| Kostantin |
| Constantine |
| Kosta |
| Costa |
| Costas |
| Kostis |
| Konstantinos |
| Konrad |
| Kenneth |
| Kevin |
| Kyle |
| Keith |
| Kurt |
| Kos |
| Kosta |
| Tas |
| Kosty |