"Variant of Kirsten"
The name Kjersten is commonly a female name from the "German" origin.
Kjersten is a Scandinavian spelling of Kirsten, which is the Scandinavian form of Christina; it belongs to the same family of names as Kjersti and Kjerstin. The initial kj is a feature of Norwegian and Danish orthography, where it represents a palatalized sound rather than a k followed by a j. The name was in use in Scandinavia well before its first appearance in United States birth records in 1971.
Kirsten means "Anointed, Covered in oil.".
The pronunciation of Kjersten is KER-sten.