Karthik is a distinctive boys' name in United States, ranking #2376 in 2003 with 45 recorded births. The name reached its all-time peak in 2010 with 79 births ranking #1847. Since 1996, the popularity has increased by 95.7%. In 2003, approximately 1 in every 43,895 boys born was named Karthik. STABLE Recent data shows the name is currently stable.