Kristoff is a distinctive boys' name in United States, ranking #5805 in 2007 with 15 recorded births. The name reached its all-time peak in 2015 with 41 births ranking #2886. Since 1996, the popularity has increased by 25.0%. In 2007, approximately 1 in every 138,349 boys born was named Kristoff. FALLING Recent data shows the name is currently falling.