MallowbyNames

Cylus

SYE-lus · Likely a modern invented name, possibly inspired by the Greek myth of Cyllus or a variant of Silas, but its intended meaning is unclear.

2025 rank (boys)
#3,513
Babies named in 2025
32
Peak popularity
2012
2025 frequency
1 in 53,377 boys
Usually for
Boys
Trend
Declining since 2013

Declining since 2013, #3,513 for boys today.

Popularity of Cylus since 1997

Babies named Cylus per year in U.S. Social Security records.

265177200020102020Most births 2012Boys
Data table (by decade)
DecadeBoys
1990s6
2000s126
2010s544
2020s226

Meaning & origin

Cylus is a rare modern name that first appeared in U.S. records in 1997. Its popularity peaked in 2012, but since 2013 its use has been steadily falling, reflecting its status as an uncommon and relatively recent invention. With a current rank of 3,513 in 2025 and a 1-in-53,377 frequency, Cylus remains a distinctive choice. The name has not been recorded in any U.S. state's top baby names, suggesting its usage is scattered and extremely limited. Despite its obscurity, Cylus fits a pattern of modern names ending in '-us' that sound classical, like Silas or Cyrus, which may have inspired its coinage.

Cylus is a rare modern coinage, first recorded in the United States in 1997. It may have been formed as a variant of Silas (derived from the Latin Silvanus, meaning 'of the forest') or as a unique creation inspired by similar-sounding names like Cyrus. Its usage has remained extremely low, with no clear etymological tradition.

Nicknames & variants

Nicknames: Cy

Sibling names for Cylus

Names that share Cylus's style, for a brother or sister.

Sisters: Lyra, Nora, Vera, Willow, Zara

Brothers: Cyrus, Felix, Jasper, Miles, Silas

A parent animal hugging its little one, the personalized name page

C is for Cylus, our favorite little boy.

C is for Cylus…”

In a Mallowby alphabet book, Cylus's letter becomes Cylus's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Cylus's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Cylus mean?
Cylus is a modern invented name with no established meaning. It may be a creative variant of Silas or Cyrus.
How popular is the name Cylus?
Cylus is very rare. In 2025 it ranked 3,513 with a 1-in-53,377 chance of a newborn boy being given that name.
Is Cylus a boy or girl name?
Cylus is used almost exclusively for boys. It has been consistently recorded as a male name since its first appearance in 1997.