Kelsen is a strong and unique name for boys. It has its origins in English and is pronounced as "KEL-sen" (/ˈkɛl.sən/). The name Kelsen is also sometimes spelled as Kelson. Although it is not widely popular, it has been steadily used in the United States over the years. In 2021, there were six occurrences of the name, ranking at number 10,772. The popularity of Kelsen has fluctuated throughout the years, but it remains a charming choice for parents looking for a distinctive name for their baby boy.