Girls' name · since 1966

Sundai

121 babies named Sundai in U.S. Social Security records since 1966, with the highest year being 2023. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

#25,066 of 72,339
all-time among girls
#12,146 of 17,297
2025 SSA year
121
born since 1966
2010s
peak decade

121 babies have been named Sundai since 1966, making it today's #12146 girls' name.

Sundai has 121 recorded births among girls since 1966, per the U.S. Social Security Administration, ranked #12146 as of the latest data, more common than 30% of girls, busiest in the 2010s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1966 to 2025.

  • #25,066 of 72,339 all-time among girls
  • #12,146 of 17,297 2025 SSA year
  • 121 born since 1966
  • 2010s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Sundai ranks #25,066 of 72,339 girls' names by all-time recorded births (highest first) and #12,146 of 17,297 among girls' names in 2025. 121 born since 1966, peaking in the 2010s.

#25,066 of 72,339
all-time among girls
#12,146 of 17,297
2025 SSA year
121
born since 1966
2010s
peak decade
0%100%Median name50%29.7%
Sundai vs. every other girls name in current SSA rankings
Below the archive median
All-time archive position

Sundai's 121 recorded births place it above 65.34% of the 72,339 girls names in the full SSA archive.

National only
State-record footprint

No state rows cleared SSA’s public reporting threshold for this name.

How Sundai compares

121 28th percentile among 17,297 names currently given to girls

Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.

Source U.S. Social Security Administration, national baby name data

How the numbers stack up

Sundai's all-time total is 68% below the median girls name, and Olivia still leads by a wide margin.

Metric Sundai Median girls name (Kyann) #1 girls name (Olivia)
All-time total births 121 376 567,345
Peak-year births 13 21 19,840

Sundai's usage pattern, beyond the headline number

Splitting Sundai's full recorded timeline at 2015, 56% of its total births fall in the more recent half of the record versus 44% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1996, with just 5 recorded births -- worth weighing against the 2023 peak of 13 to see the full range of the name's swing in popularity.

Sundai popularity over time

Annual U.S. births registered with the Social Security Administration · 1966–2025

Outside the top 1,000
Peak year (2023)
13
Annual births at peak, across 60 years of records
468101214 19662009201120142016201820232025 7

Sundai by decade

2010s is the heaviest window (54 births, 45% of the file).

2010s was Sundai's strongest decade.

54 babies received the name during that ten-year window, about 45% of all-time use.

Sundai births by decade

Total births in each ten-year window

births

What this shows Peak: 2010s at 54 births (45% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

Frequently Asked Questions

How popular is the name Sundai?
Sundai has been given to 121 babies in the U.S. since 1966, according to SSA data. Its archive ordinal is #25,066 of 72,339 among girls' names (total births, highest first). Among girls in 2025, it is #12,146 of 17,297. 13 babies were born in 2023, its single highest year.
Where does Sundai sit in the SSA name archive?
According to the U.S. Social Security Administration, Sundai ranks #25,066 of 72,339 girls' names by all-time recorded births (highest first) and #12,146 of 17,297 among girls' names in 2025. All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the 2025 SSA file. See /methodology#corpus-placement.
When was Sundai most popular?
Sundai was most popular in the 2010s decade with 54 total births. The single peak year was 2023.
How long has the name Sundai been used?
Records for Sundai go back to 1966, giving 60 years of history through 2025.
What names are similar to Sundai?
Names with a similar sound or spelling include Sunny, Sunshine, Sunday, Sunnie, and 4 more. These share a common prefix and are also used for girls.

What to do with Sundai's data

  • Sundai's usage has stayed within range of its 2010s decade-level peak (54 total births) through the 2020s (45) -- a comparatively stable name, not a fading trend.

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Sundai

Nearby Names Like Sundai

Names with a similar sound, spelling, or feel to Sundai

Names with a similar popularity rank to Sundai

Nationwide names with similar peak year or record span

Two nationwide peer axes for Sundai: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.

Data Sources

Data as of August 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, 1966–2025 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

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 Sundai 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 August 2026.