Cyril is a distinctive boys' name in United States, ranking #2511 in 1998 with 34 recorded births. The name reached its all-time peak in 2018 with 61 births ranking #2240. Since 1996, the popularity has increased by 41.7%. In 1998, approximately 1 in every 56,215 boys born was named Cyril. STABLE Recent data shows the name is currently stable.