Koltan is a distinctive boys' name in United States, ranking #8420 in 2015 with 9 recorded births. This places Koltan in the bottom 40% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2013 with 20 births ranking #4727. Since 1996, the popularity has increased by 28.6%. In 2015, approximately 1 in every 212,918 boys born was named Koltan. FALLING Recent data shows the name is currently falling.