Thÿ
surname · Latin script
Thÿ is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: From Middle English þi, apocopated variant of þin, from Old English þīn, from Proto-West Germanic *þīn, from Proto-Germanic *þīnaz, from Proto-Indo-European *téynos (“thy; thine”), from Proto-Indo-Eur.
- USUnited States1 in 157K(measured from records)
- FIFinland1 in 223K
- ISIceland1 in 351K
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Record sources
- 39 (measured from records)
- 1 in 157K (inferred from the name graph)
2,123 people, 2020
corpus datasets behind its best-documented spelling
strongest: highest-authority source
United States
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Thy in US United States, DK Denmark, SE Sweden.
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
(measured from records)- Middle Englishþi(measured from records)
- Old Englishþīn(measured from records)
- Proto-West Germanic*þīn(measured from records)
- Proto-Germanic*þīnaz(measured from records)
- Proto-Indo-European*téynos“thy; thine”(measured from records)
- Proto-Indo-European*túh₂“thou”(measured from records)
From Middle English þi, apocopated variant of þin, from Old English þīn, from Proto-West Germanic *þīn, from Proto-Germanic *þīnaz, from Proto-Indo-European *téynos (“thy; thine”), from Proto-Indo-European *túh₂ (“thou”). See thou.
Cited for this meaning 1
Attested across 17 languages in the etymology graph.
Where in the world
(measured from records)Thÿ counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | |||
|---|---|---|---|---|---|
| US United States | 2,123 | 1 in 157K | 1.8K | Thy | 16 |
| NL Netherlands | 39 | 1 in 443K | 31 | — | 1 |
| SE Sweden | 26 | 1 in 392K | 26 | Thy | 4 |
| FI Finland | 25 | 1 in 223K | 65 | — | — |
| DK Denmark | 4 | 1 in 1.5M | 163 | Thy | 39 |
| IS Iceland | 1 | 1 in 351K | 1 | — | 2 |
2,123 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — First Name Frequency 2020 by sex; Danmarks Statistik — Hvor mange hedder...? (living-population name counts); DVV — Etunimitilasto (Finnish given names register); DVV — Nimipalvelu (Finnish name service, per-name lookup); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Skatteverket — Sök hur många som har ett visst namn (living population); Þjóðskrá Íslands — Name frequencies (NafnTíðni, registry). Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Evidence
(measured from records)No register attests this spelling yet
Frequently asked questions
- What does the name Thÿ mean, and where does it come from?
- From Middle English þi, apocopated variant of þin, from Old English þīn, from Proto-West Germanic *þīn, from Proto-Germanic *þīnaz, from Proto-Indo-European *téynos (“thy; thine”), from Proto-Indo-Eur… Recorded by Wiktionary.
- In which country does Thÿ have the most bearers?
- In the United States, the national register counted about 2.1 thousand people named Thÿ, more than in any other country we hold, where it is most often spelled thy.
- Where is Thÿ most common?
- Thÿ is densest in the United States, where the national register counts about 1 in 157 thousand people carrying it.
- How common is the name Thÿ?
- In the United States, the national register counted 2,123 people named Thÿ in 2020, about 1 in 157 thousand residents.
What do you want to know about Thÿ?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/th%C3%BFThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Thÿ”. Data snapshot 2026-10-13.