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Cyndi

Girls' name

A Diana monkey, through Cynthia

Cyndi has been given to 3,568 babies in the U.S. since 1946. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1959, with 230 recorded.

Babies named Cyndi, 2024

1 in 669,000

Cyndi over time, 1880–2025

Girls
010020030018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Cyndi: meaning, origin, and history

A Diana monkey, through Cynthia

Deeper origin not confirmed in the cited records

What Cyndi means

Cyndi belongs to the name family reached through Cyndi → Cynthia. Its meaning is “A Diana monkey”.

Origin, language, and formation

Cyndi is used in English.

Related names and everyday forms

Related names include Cynthia and Cindy.

American usage and historical context

In the United States, 3,568 girls were recorded with the name Cyndi between 1946 and 2024. Its highest annual count was 230 in 1959; its best national rank was #660 in 1959.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Cyndi?

Cyndi had fewer than 5 recorded uses in 2025, so these figures use 2024, the last year it was published.

Among all babies, 2024
1 in 669,000
5 of 3,342,801 births
Among girls only
1 in 324,000
<0.01% of girls
Rank, 2024
Unranked
Fewer than 5 uses
Coin-flip room size
463,412 kids
Even odds of a second one

Where Cyndi sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2024 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 463,412 children born in 2024 and it's an even bet that one of them is another Cyndi. In a class of 30 the chance is Under 1%.

When Cyndis were born

Half of everyone ever recorded as Cyndi was born before 1966 — so the typical Cyndi is around 59 today.

Median birth year
1966
About 59 years old
Biggest decade
1960s
35.7% of all use
Born in the last 25 years
7.1%
Mostly a past generation
Recorded since 1950
3,513
People you could plausibly meet
Choose a decade

1960s — 35.7% of all recorded uses (1,273).

Is Cyndi rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
0%
Peak was 1959 (230)
Years since peak
66
Years
Year-to-year steadiness
Volatile
27.2% average annual change
Best rank ever
#660
1959

Spellings of Cyndi

Cyndi is not the most common spelling — Cindy is, with 51.7% against Cyndi's 0.72%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Cyndi is used

Across 1910–2025, Cyndi was most concentrated in California — about 1 in 25,000 girls, against 1 in 80,596 across all states with data. It was least common in Wisconsin (1 in —).

04 per 100,000

Most concentrated

  1. 1California1 in 25,000
  2. 2Texas1 in 50,000
  3. 3Washington1 in 50,000
  4. 4Colorado1 in 100,000
  5. 5Florida1 in 100,000
  6. 6Illinois1 in 100,000
  7. 7Indiana1 in 100,000
  8. 8Kansas1 in 100,000

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Cyndi has too little recent state data to map, so this covers all years from 1910.

Cyndi around the world

Where Cyndi ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • Scotland
    1987–1987
    #582
    in 1987
  • France
    1977–2007
    #5,795
    in 2007
  • Canada
    1991–1995
    #2,576
    in 1995
  • South Australia
    1985–2010
    #801
    in 2010

Popularity data from National Records of Scotland, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). NRS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.

Notable people named Cyndi

People whose public names include Cyndi, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Cyndi in other languages

Cross-language forms and variants of Cyndi. Linked forms have their own page here.

CindyCyndySindyCyndee

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Cyndi by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#660
1959
Peak year
1959
230 that year
First recorded
1946
Last recorded
2024
All-time count
3,568
Count in 2025
Under 5

Names similar to Cyndi

Matched on shared beginnings and endings, similar length, and comparable popularity.

LyndiCyndyMandiSandiLindiNandiMindiAndiKandiKendiCyndaCyniahCandiCindiBindiRandiIndiCyndeeCynaiCyndeCyndieWendiShandiCyntia

Names with a curve like Cyndi

Not spelling — timing. These names rose, peaked and faded in the same years as Cyndi, so they read as being from the same moment even when they look nothing alike.

LeesaJackiMigdaliaDeedeeJeanmarieRisaLoryCherriTamieLezlieTariLissa

Sibling names for Cyndi

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Cyndi

Top names of 1959, Cyndi's peak yearThe 1950s in fullOther names that peaked in 1959Girls' names starting with C