Total births
108
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.
- 108
- total births
- 1955–1979
- years on record
- 1960s
- peak decade
- 49%
- born in that 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.
- 108 total births
- 1955–1979 years on record
- 1960s peak decade
- 49% born in that decade
Data updated Jun 2026
The verdict
108 girls have been named Cythnia since 1955, peaking in the 1960s, last recorded in 1979.
- 108
- total births
- 1955–1979
- years on record
- 1960s
- peak decade
- 49%
- born in that decade
1960s
Peak decade
49% of everyone ever named Cythnia was born in this single decade.
1958
Single peak year
10 babies were named Cythnia in 1958 - its busiest year on record.
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 at a glance
Last recorded 1979Peak year
1958
Current rank
Unranked
Active since
1955
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
Total births in each ten-year window, peak vs trough at a glance
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? ▼
108 babies have been named Cythnia since 1955. It was last recorded in 1979. The peak year was 1958 with 10 births.
When was Cythnia most popular? ▼
Cythnia was most popular in the 1960s decade with 53 total births. The single peak year was 1958.
How long has the name Cythnia been used? ▼
Records for Cythnia go back to 1955, giving 25 years of history through 1979.
What names are similar to Cythnia? ▼
Names with a similar sound or spelling include Cythia, Cythina, Cytlaly, Cytlali, and 2 more. These share a common prefix and are also used for girls.
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.
- Weighing it against an alternative? Put two names side by side. Compare names
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
Cythia Girl
401 births
Cythina Girl
110 births
Cytlaly Girl
55 births
Cytlali Girl
38 births
Cytnhia Girl
5 births
Compare Cythnia side by side: Cythnia vs Cythia Cythnia vs Cythina Cythnia vs Cytlaly
Related Names
Names with a similar number of total births
Data Sources
Data as of June 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).
Cite this page
NameAlmanac Editorial. "Cythnia: Baby Name Since 1955 - 108 Births, Peak 1958." NameAlmanac. Accessed via https://namealmanac.com/name/cythnia. Licensed CC BY-SA 4.0.
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 June 2026.