Cyril is a distinctive boys' name in United States, ranking #2643 in 2010 with 46 recorded births. The name reached its all-time peak in 2018 with 61 births ranking #2240. Since 1996, the popularity has increased by 91.7%. In 2010, approximately 1 in every 41,705 boys born was named Cyril. STABLE Recent data shows the name is currently stable.