The story of Cylus
Cylus is rare for boys in the United States, ranked #3,527 in 2025 with 32 babies given the name. It is currently declining compared with a decade ago.
Since 1997, 902 American babies have been named Cylus. Its peak came in 2012, when 77 newborns received the name, the signature sound of the 2010s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Cylus stood among all boys' names in any year, or use the compare tool to plot it against other names.