Globally, Керстин (Kerstin 
, Керстин 
) is a widespread girly first name. The forename Керстин is habitual in Germany, where it is a common feminine name, Sweden, where it is quite a common girly name, and Austria. Not in comparison with a country's population, this name is the most popular in Germany, Sweden, and the United States. Very seldom, Керстин is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kerstin | Germany, Sweden, Austria, Spain, United States |
| Керстин | Russia, Ukraine |
Cerstin, Christiana, Christiane, Christin, Christina, Christine, Chryscina, Cristiana, Cristiane, Cristin, Cristina, Kerstine, Kerstyn, Kine, Kirsten, Kirsti, Kirstjen, Kristi, Kristiane, Kristiina, Kristin, Kristina, Kristine, Kristy, Kristín, Kristína, Kristýna, Krisztina, Krystiana, Krystyna, Kyerstin, Χριστίνα, Χριστιάνα, Кине, Кирстен, Кирсти, Кристи, Кристиана, Кристиина, Кристийна, Кристин, Кристина, Кристине, Крися, Крыстына, Крістіана, Крістіна, Крістіне, Крістін, Христина, כריסטינה,
Керстин is also a name for the fictitious and mythical characters: Kerstin Richter , the soap opera character.
Хан, Радюль, and Дауенхаймер