MallowbyNames

Cynethia

sin-NEE-thee-uh · Of uncertain origin, possibly a modern coinage or a creative variant of Cynthia or Synthia.

Peak popularity
1977
Usually for
Girls
Trend
Holding steady

Holding steady.

Popularity of Cynethia since 1955

Babies named Cynethia per year in U.S. Social Security records. Raw births topped out in 1967, but relative to how few babies were recorded back then, Cynethia's real moment was 1977.

510151960198020002020Most births 1967Girls
Data table (by decade)
DecadeGirls
1950s20
1960s49
1970s55
1980s59
1990s7
2000s0
2010s0
2020s0

Meaning & origin

Cynethia is a rare modern coinage that first appeared in U.S. birth records in 1955, a time when inventive feminine names with elaborate spellings were gaining popularity. It reached its peak frequency in 1977, but even then it did not enter the top 1000, making it a truly uncommon choice. The name's trajectory has been stable, with only a handful of births each year in recent decades. Its spelling and sound suggest it is a creative variant of the more established Cynthia, which itself derives from a Greek epithet for Artemis. While Cynethia lacks deep historical roots, its rarity can appeal to parents seeking a distinctive name that still feels familiar.

Cynethia appears to be a modern English coinage, likely formed by blending the name Cynthia (derived from Greek Kynthia, an epithet of Artemis) with an invented or fashionable ending. The name first appeared in U.S. records in 1955 and saw modest use, peaking in 1977. Its spelling suggests a phonetic variant of Cynthia, possibly influenced by names like Lynethia.

Nicknames & variants

Nicknames: Cyn, Cyndi, Thea

Variants: Cynthya, Synthia

Sibling names for Cynethia

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

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

C is for Cynethia, our favorite little girl.

C is for Cynethia…”

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

Make Cynethia's book

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

Questions parents ask

What does the name Cynethia mean?
The meaning of Cynethia is uncertain. It is likely a modern American coinage based on the name Cynthia, which means 'woman from Mount Cynthus' in Greek.
How popular is the name Cynethia?
Cynethia has never ranked among the top 1000 names in the U.S. Its peak year of usage was 1977, and its popularity has remained stable at very low levels.
Is Cynethia a boy or girl name?
Cynethia is almost exclusively used as a girl's name.