Recorded 1953–1990 Girls' name Peak 1966 220 births

Cynithia — girls' name

220 babies named Cynithia in U.S. Social Security records since 1953, with the highest year being 1966. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1950s581960s1271970s301990s5
1960s
Peak decade

58% of everyone ever named Cynithia was born in this single decade.

1966
Single peak year

19 babies were named Cynithia in 1966 — its busiest year on record.

What the Data Says About Cynithia

The Social Security Administration has registered 220 babies named Cynithia between 1953 and 1990, spanning 38 consecutive years of U.S. birth records. As a girl's name, Cynithia currently falls outside the top 1,000 girls' names for 1990. The name reached its historical peak in 1966, when 19 babies received it in a single year.

Decade-level aggregation shows that Cynithia performed strongest in the 1960s, accumulating 127 births during that ten-year window. Across the 4 decades of recorded activity, Cynithia shows a clear decline from its mid-century high.

No etymological entry is currently available for Cynithia in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 220 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Cynithia at a glance

Last recorded 1990

Total births

220

Since 1953

38 years of records

Peak year

1966

19 births that year

Strongest decade: 1960s

Current rank

Unranked

Outside the modern top-1,000

As of 1990

Active since

1953

Recorded for 38 years

Last year on file: 1990

Cynithia popularity over time

Annual U.S. births registered with the Social Security Administration · 1990–1953

Last recorded 1990
Peak year (1966)
19
Annual births at peak — across 38 years of records
05101520 19901973196819651962195919561953 7

Cynithia by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1960s
Peak decade
1960s
127 births that decade — 58% of Cynithia's all-time total
1950s581960s1271970s301990s5

Frequently Asked Questions

How popular is the name Cynithia?
220 babies have been named Cynithia since 1953. It was last recorded in 1990. The peak year was 1966 with 19 births.
When was Cynithia most popular?
Cynithia was most popular in the 1960s decade with 127 total births. The single peak year was 1966.
How long has the name Cynithia been used?
Cynithia has been recorded in Social Security data since 1953, spanning 38 years of data through 1990.
What names are similar to Cynithia?
Names with a similar sound or spelling include Cynthia, Cyndi, Cyndy, Cyndee, and 4 more. These share a common prefix and are also used for girls.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1953–1990 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.