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Thi

UnisexGirls' nameBoys' name

Poetry, poem, verse

Thi has been given to 471 babies in the U.S. since 1976. 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 1982, with 20 recorded. It's used for both sexes: 87% girls, 13% boys all-time.

Babies named Thi, 2018

1 in 586,000

Thi over time, 1880–2025

GirlsBoys
0510152018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Thi over time

In 2018, Thi went to 100% girls and 0% boys.

19762018

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Thi: meaning, origin, and history

Poetry, poem, verse

Chinese

What Thi means

Thi means “poetry, poem, verse”.

Documented naming usage and pronunciation

Thi is used in Vietnamese.

Another recorded pronunciation is /tʰi˧˧/ and /tʰɪj˧˧/ for Thi.

Origin, language, and formation

Thi is used in Vietnamese. Its origins include Chinese.

Pronunciation and spelling

In Vietnamese, Thi is pronounced [tʰi˧˧].

American usage and historical context

In the United States, 408 girls were recorded with the name Thi between 1976 and 2018. Its highest annual count was 20 in 1982; its best national rank was #4,018 in 1982.

In the United States, 63 boys were recorded with the name Thi between 1979 and 1997. Its highest annual count was 9 in 1983; its best national rank was #4,459 in 1983.

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 Thi?

Thi had fewer than 5 recorded uses in 2025, so these figures use 2018, the last year it was published.

Among all babies, 2018
1 in 586,000
6 of 3,516,853 births
Among girls only
1 in 283,000
<0.01% of girls
Rank, 2018
Unranked
Fewer than 5 uses
Coin-flip room size
406,284 kids
Even odds of a second one

Where Thi 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 2018 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 406,284 children born in 2018 and it's an even bet that one of them is another Thi. In a class of 30 the chance is Under 1%.

When This were born

Half of everyone ever recorded as Thi was born before 1994 — so the typical Thi is around 31 today.

Median birth year
1994
About 31 years old
Biggest decade
1990s
29.2% of all use
Born in the last 25 years
51.7%
A modern name
Recorded since 1950
408
People you could plausibly meet
Choose a decade

1990s — 29.2% of all recorded uses (119).

Is Thi 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 1982 (20)
Years since peak
43
Years
Year-to-year steadiness
Volatile
36.9% average annual change
Best rank ever
#4,018
1982

Where Thi is used

Across 1910–2025, Thi was most concentrated in California — about 1 in — girls, against 1 in 577,422 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2Texas1 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. Thi has too little recent state data to map, so this covers all years from 1910.

Thi around the world

Where Thi 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
    1996–2000
    #3,247
    in 2000
  • France
    1942–2023
    #6,909
    in 2023
  • Norway
    1880–2005
    #578
    in 2005
  • Canada
    1991–2008
    #2,486
    in 2008
  • South Australia
    1973–2013
    #818
    in 2013

Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques, Statistics Norway, 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. SSB, CBS SA data under CC BY 4.0. StatCan data under Statistics Canada Open Licence.

Thi 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
#4,018
1982
Peak year
1982
20 that year
First recorded
1976
Last recorded
2018
All-time count
408
Count in 2025
Under 5

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#4,459
1983
Peak year
1983
9 that year
First recorded
1979
Last recorded
1997
All-time count
63
Count in 2025
Under 5

Names similar to Thi

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

ThiaThianaThiaraAdithiKrithiThirzaThiyaMahathiThiriThiagoSruthiDhrithiDrithiSwathiThienArthiThidaShruthiCathiShakthiKeerthiXanthiAarthiSahithi

Sibling names for Thi

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 Thi

Top names of 1982, Thi's peak yearThe 1980s in fullOther names that peaked in 1982Girls' names starting with T