Karthik is a distinctive boys' name in United States, ranking #2545 in 2005 with 44 recorded births. The name reached its all-time peak in 2010 with 79 births ranking #1847. Since 1996, the popularity has increased by 91.3%. In 2005, approximately 1 in every 45,390 boys born was named Karthik. STABLE Recent data shows the name is currently stable.