Kjell is a Scandinavian usually male given name. In Denmark, the cognate is Kjeld or Keld. The name comes from the Old Norse word kętill, which means "kettle" and probably also "helmet" or perhaps "cauldron". Examples of old spellings or forms are Ketill (Old Norse), Kjætil (Old Swedish) and Ketil (Old Danish). An equally likely meaning is a source, a hope that the boy will get ample resources to draw upon later in life. Kjell has a name day on July 11 in Norway and July 8 in Sweden, and in Denmark with the variant Kjeld. Prevalence.
https://en.wikipedia.org/wiki/Kjell