Cythnia
Girl nameCythnia has been given to 108 babies in the U.S. since 1955. It peaked in 1958.
Popularity over time births per year, 1880–2025
Total babies
108
Peak year
1958 (10 babies)
Rank in 2025
Below top 1000
First recorded
1955
10-year trend
New / returning
Gender split
All girls
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Cythnia.
Sibling name ideas for Cythnia
Same era and popularity as Cythnia, avoiding matching initials or rhymes.
FAQ
How popular is the name Cythnia?
Cythnia has been given to 108 babies in the U.S. since 1955. It ranked below the top 1000 in 2025.
When did the name Cythnia peak?
Cythnia peaked in 1958, when 10 babies were given the name.
Is Cythnia a girl or boy name?
Cythnia is primarily a girl name (100% of babies named Cythnia are girls).
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