| Cäcilia | Zill | |
| Cäcilie | Zilla | |
| calvinistisch | calvinsch | |
| Chance | Changs, Kanz, Schangs | |
| Charlotte | Lott | |
| Chefs | Böeverschte | |
| chic | schick | |
| Christ | Chress | |
| Christbaum | Chressbuom, Dännembuom | |
| Christian | Chriees, Kriees | |
| Christine | Christing, Stina, Sting, Tinni | |
| Christkind | Chresskenk | |
| Christmette | Chressmieeß | |
| Clara | Clör | |
| Cornelia | Nelli | |
| Courage | Kuraasch | |