Girls' name · since 1955
Cythnia
108 babies named Cythnia in U.S. Social Security records since 1955, with the highest year being 1958. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #26,248 of 72,339
- all-time among girls
- 108
- born since 1955
- 1960s
- peak decade
Cythnia sits outside today's top ranks for girls, with 108 recorded since 1955.
Social Security Administration records show Cythnia recorded 108 times among girls since 1955, though it doesn't currently rank among the most-used girls names, peaking in the 1960s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1955 to 1979.
- #26,248 of 72,339 all-time among girls
- 108 born since 1955
- 1960s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Cythnia ranks #26,248 of 72,339 girls' names by all-time recorded births (highest first). 108 born since 1955, peaking in the 1960s.
- #26,248 of 72,339
- all-time among girls
- 108
- born since 1955
- 1960s
- peak decade
Cythnia's 108 recorded births place it above 63.59% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Cythnia's usage pattern, beyond the headline number
Divide Cythnia's SSA record in two at 1965 and the more recent half accounts for 49% of all births, the earlier half the remaining 51%, a genuinely balanced usage pattern. Its calmest year was 1959, with only 5 births recorded -- set against the 1958 peak of 10, that's the full swing in one name's fortunes.
Cythnia popularity over time
Annual U.S. births registered with the Social Security Administration · 1955–1979
- Peak year (1958)
- 10
- Annual births at peak, across 25 years of records
Cythnia by decade
1960s is the heaviest window (53 births, 49% of the file).
1960s was Cythnia's strongest decade.
53 babies received the name during that ten-year window, about 49% of all-time use.
Cythnia births by decade
Total births in each ten-year window
- 1950s
1950s
23 births
- 1960s
1960s
53 births
- 1970s
1970s
32 births
What this shows Peak: 1960s at 53 births (49% of all-time use).
Frequently Asked Questions
How popular is the name Cythnia? ▼
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What to do with Cythnia's data
- Cythnia's usage has stayed within range of its 1960s decade-level peak (53 total births) through the 1970s (32) -- a comparatively stable name, not a fading trend.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Cythnia
Nearby Names Like Cythnia
Names with a similar sound, spelling, or feel to Cythnia
Compare Cythnia side by side: Cythnia vs Cythia Cythnia vs Cythina Cythnia vs Cytlaly
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Cythnia: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1958)
Similar record span (~24 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1955–1979 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Cythnia draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.