Kristoff is a distinctive boys' name in United States, ranking #5450 in 2009 with 17 recorded births. This places Kristoff in the top 37% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 41 births ranking #2886. Since 1996, the popularity has increased by 41.7%. In 2009, approximately 1 in every 116,665 boys born was named Kristoff. FALLING Recent data shows the name is currently falling.