Cyril has been given to about 12,131 people in the United States since 1880. It was most common in 1916, which makes it a Edwardian name.
Its best year was 1916, when 338 babies were given the name, ranking 283rd. The typical living American called Cyril is about 63 years old today. It is relatively most common in California, where it accounts for 0.00% of births.
Source: US Social Security Administration, national and state name files, 2025 release, and the Office for National Statistics for England and Wales. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.