Kelsen is of Scandinavian origin, derived from the Old Norse word 'kálfr' meaning 'strife'. It was originally a nickname given to someone who was quarrelsome or combative. Today, Kelsen is often used as a given name, especially in Scandinavia and Germany.
The name Kelsen experienced a peak in popularity between 2008 and 2012, with the highest number of births recorded in 2012 (11 births). However, it has since seen a decline, with only 6 births each year from 2017 to 2021. Overall, there have been 119 babies named Kelsen born between 1997 and 2021.