Total births
366
Girls' name · since 1979
Thy
Since 1979, U.S. Social Security records show 366 babies named Thy, peaking in 1991. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- 366
- total births
- 1979–2018
- years on record
- 1980s
- peak decade
- 29%
- born in that decade
Thy sits outside today's top ranks for girls, with 366 recorded since 1979.
Social Security Administration records show Thy recorded 366 times among girls since 1979, though it doesn't currently rank among the most-used girls names, peaking in the 1980s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1979 to 2018.
- 366 total births
- 1979–2018 years on record
- 1980s peak decade
- 29% born in that decade
Data updated Jun 2026
The verdict
366 girls have been named Thy since 1979, peaking in the 1980s, last recorded in 2018.
- 366
- total births
- 1979–2018
- years on record
- 1980s
- peak decade
- 29%
- born in that decade
1980s
Peak decade
29% of everyone ever named Thy was born in this single decade.
1991
Single peak year
18 babies were named Thy in 1991 - its busiest year on record.
Thy's usage pattern, beyond the headline number
Thy splits its recorded history at 1997: 50% of all births land in the more recent half, 50% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1979 (5 births) -- compare that against the 1991 peak of 18 for a sense of just how much the name's popularity has swung.
Thy at a glance
Last recorded 2018Peak year
1991
Current rank
Unranked
Active since
1979
Thy popularity over time
Annual U.S. births registered with the Social Security Administration · 1979–2018
- Peak year (1991)
- 18
- Annual births at peak, across 40 years of records
Thy by decade
Total births in each ten-year window, peak vs trough at a glance
1980s was Thy's strongest decade.
106 babies received the name during that ten-year window, about 29% of all-time use.
Thy births by decade
Total births in each ten-year window
- 1970s 5
1970s
5 births
- 1980s
1980s
106 births
- 1990s
1990s
84 births
- 2000s
2000s
100 births
- 2010s
2010s
71 births
What this shows Peak: 1980s at 106 births (29% of all-time use).
Thy by state
Where Thy concentrates geographically, total births since 1979
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 69 | 18.9% |
California share of Thy's total US births 18.9%
69 of 366 births nationwide.
Frequently Asked Questions
How popular is the name Thy? ▼
Since 1979, Social Security records show 366 babies named Thy. The most recent recorded year was 2018. Its busiest year on record was 1991, with 18 births.
When was Thy most popular? ▼
Thy was most popular in the 1980s decade with 106 total births. The single peak year was 1991.
Where is Thy most popular? ▼
The top states for the name Thy are California (69 births).
How long has the name Thy been used? ▼
The SSA has tracked Thy since 1979 -- 40 years through the most recent 2018 data.
What names are similar to Thy? ▼
Names with a similar sound or spelling include Thyra, Thyri, Thyme, Thyrii, and 4 more. These share a common prefix and are also used for girls.
What to do with Thy's data
- Thy's usage has stayed within range of its 1980s decade-level peak (106 total births) through the 2010s (71) -- a comparatively stable name, not a fading trend.
- California records the most Thys (69 births) -- see the full state breakdown if geography matters to your decision. California names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Thy
Nearby Names Like Thy
Names with a similar sound, spelling, or feel to Thy
Thyra Girl
#7987 1,320 births
Thyri Girl
#2583 347 births
Thyme Girl
58 births
Thyrii Girl
24 births
Thyda Girl
19 births
Compare Thy side by side: Thy vs Thyra Thy vs Thyri Thy vs Thyme
Related Names
Names with a similar number of total births
Data Sources
Data as of June 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, 1979–2018 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Thy: Baby Name Since 1979 - 366 Births, Peak 1991." NameAlmanac. Accessed via https://namealmanac.com/name/thy. Licensed CC BY-SA 4.0.
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 Thy 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 June 2026.