Sindy

#10,009 in 2025Girls' name

A Diana monkey, through Cindy

Sindy has been given to 2,773 babies in the U.S. since 1921. In 2025 it ranked #10,009 of 17,293 girls’ names in use. Its peak year was 1979, with 88 recorded.

Babies named Sindy, 2025

1 in 332,000

Sindy over time, 1880–2025

Girls
025507510018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Sindy: meaning, origin, and history

A Diana monkey, through Cindy

Deeper origin not confirmed in the cited records

What Sindy means

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

Origin, language, and formation

Sindy is used in English.

Related names and everyday forms

Related names include Cindy and Cynthia.

American usage and historical context

In the United States, 2,773 girls were recorded with the name Sindy between 1921 and 2025. Its highest annual count was 88 in 1979; its best national rank was #1,165 in 1957.

Over 5 years its rank rose, from #10,970 in 2020 to #10,009 in 2025. Over 10 years its rank fell, from #6,207 in 2015 to #10,009 in 2025.

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 Sindy?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 332,000
10 of 3,315,165 births
Among girls only
1 in 161,000
<0.01% of girls
Rank, 2025
#10,009
of 17,293 girls’ names in use
Coin-flip room size
229,791 kids
Even odds of a second one

Where Sindy 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 2025 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 229,791 children born in 2025 and it's an even bet that one of them is another Sindy. In a class of 30 the chance is Under 1%.

When Sindys were born

Half of everyone ever recorded as Sindy was born before 1988 — so the typical Sindy is around 37 today.

Median birth year
1988
About 37 years old
Biggest decade
2000s
19.3% of all use
Born in the last 25 years
26.5%
Spread across generations
Recorded since 1950
2,756
People you could plausibly meet
Choose a decade

2000s — 19.3% of all recorded uses (535).

Is Sindy 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
−536
Places dropped
Rank vs 5 years ago
+961
Places climbed
Rank vs 10 years ago
−3,802
Places dropped
Births vs 10 years ago
0.48×
Fewer babies than then
Share of its own peak
11.4%
Peak was 1979 (88)
Years since peak
46
Years
Year-to-year steadiness
Volatile
28.8% average annual change
Best rank ever
#1,165
1957

Spellings of Sindy

Sindy is not the most common spelling — Linda is, with 63.3% against Sindy's 0.12%.

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 Sindy is used

Across 1910–2025, Sindy was most concentrated in California — about 1 in 33,333 girls, against 1 in 85,481 across all states with data. It was least common in Washington (1 in —).

03 per 100,000

Most concentrated

  1. 1California1 in 33,333
  2. 2New York1 in 50,000
  3. 3Texas1 in 50,000
  4. 4District of Columbia1 in 100,000
  5. 5New Jersey1 in 100,000
  6. 6Florida1 in —
  7. 7Georgia1 in —
  8. 8Iowa1 in —

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. Sindy has too little recent state data to map, so this covers all years from 1910.

Sindy around the world

Where Sindy 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.

  • England & Wales
    1996–2020
    #4,535
    in 2020
  • France
    1976–2019
    #5,713
    in 2019
  • Canada
    1991–2001
    #2,016
    in 2001
  • South Australia
    1957–2009
    #818
    in 2009

Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). ONS 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.

Sindy in other languages

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

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

Sindy by the numbers

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

As a girl's name

Rank in 2025
#10,009
Trend vs 5 yrs ago
Up 961
Best rank ever
#1,165
1957
Peak year
1979
88 that year
First recorded
1921
Last recorded
2025
All-time count
2,773
Count in 2025
10

Names similar to Sindy

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

Names with a curve like Sindy

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

Sibling names for Sindy

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 Sindy