Koltan is a distinctive boys' name in United States, ranking #7493 in 2009 with 11 recorded births. The name reached its all-time peak in 2013 with 20 births ranking #4727. Since 1996, the popularity has increased by 57.1%. In 2009, approximately 1 in every 180,300 boys born was named Koltan. FALLING Recent data shows the name is currently falling.