Karthik is a distinctive boys' name in United States, ranking #2335 in 2015 with 56 recorded births. The name reached its all-time peak in 2010 with 79 births ranking #1847. Since 1996, the popularity has increased by 143.5%. In 2015, approximately 1 in every 34,219 boys born was named Karthik. STABLE Recent data shows the name is currently stable.