Karthik is a distinctive boys' name in United States, ranking #3135 in 2018 with 37 recorded births. The name reached its all-time peak in 2010 with 79 births ranking #1847. Since 1996, the popularity has increased by 60.9%. In 2018, approximately 1 in every 49,067 boys born was named Karthik. STABLE Recent data shows the name is currently stable.