Girl · #10,678 in 2026

Cydnei

Name: Popularity of the name Cydnei in U.S. births, 1880–2026
Creator: U.S. Social Security Administration
License: https://www.ssa.gov/foia/
Keywords: Cydnei, baby name, popularity, U.S., SSA, rankings

Current Rank

#10,678

Peak Rank

#6,640 (1995)

Total Babies

5-Yr Trend

Stable

1990

First Year

2009

Last Year

1995

Peak Year

#6640

Peak Rank

Total Count

Years Active

The Story of Cydnei

Cydnei first appeared in U.S. Social Security Administration records as a baby girl name in 1990, with 5 babies given the name that year. Its peak popularity came in 1995, when 13 Cydneis were born — ranking #6,640 that year. As of 2026, Cydnei ranks #10,678 for baby girls with 10 births, with steady use. In total, more than 53 Cydneis have been born in the U.S. since records began in 1880, spanning the 1990s through the 2020s.

Popularity Over Time

Popularity by State

Top 10

11-50

51-100

101-500

500+

No data

Names that sound like Cydnei

Phonetically similar names — useful when Cydnei is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Sydney
Sidney
Sedna
Cdna
Sinay
Sideway
Cinna
Sidhu
Sidy
Sydow
Cydia
Sidi

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Cydnei

What does the name Cydnei mean?

Cydnei is a girl's name that has been used in U.S. records since 1990. Behind the Name doesn't list a specific etymology, but the name has remained in use across multiple decades.

How popular is Cydnei in 2026?

In 2026, Cydnei ranks #10,678 among girls' names in the U.S., with 10 babies given the name that year.

When was Cydnei most popular?

Cydnei reached its peak popularity in 1995, ranking #6,640 that year with 13 babies given the name.

Is Cydnei a unisex name?

In U.S. Social Security records, Cydnei is primarily a girl's name. We don't have meaningful data for it as a boy's name.

What names go well with Cydnei?

Names that share a similar style or popularity range with Cydnei include Adrie, Koreena, Tamerra. These pairings are based on rank proximity and naming era in U.S. data.

About the name Cydnei

Cydnei is a girl baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1990 and has accumulated 53 births in the dataset. Cydnei's peak popularity came in 1995 when it ranked #6,640. Use the chart and map above to compare Cydnei's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
Predicted nationality distribution — Nationalize.io .
Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.