Jacek
given name · Polish · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Jacek is a given name, with more bearers in Poland than in any other country, where it is the 55th most common given name. It appears chiefly in Polish and English, written in the Latin script. Recorded meaning: from the personal name Jacek, a pet form of Jacenty (Latin Hyacinthus, Greek Hyakinthos).
- PLPoland1 in 169◐
- GBUnited Kingdom1 in 35K
- USUnited States1 in 116K
carrying the name, one hue, darker where it is more common. Hover a country for its figure.
- ≈233K ●
- 3 ●
- Sources
- 256 ●
- 1 in 169 ◐
across 11 countries
recorded for this name
88K records
Official registry-verified
Poland
Spellings & scripts●
Spellings marked ● are how people bearing the name write it in our records; ○ marks a model's transliteration. Click a spelling to open its page.
Meaning & origin●
from the personal name Jacek, a pet form of Jacenty (Latin Hyacinthus, Greek Hyakinthos). The personal name was popularized in Poland through the cult of St. Jacek, a 13th-century apostle and missionary who was sent to ]&ak6w, where he established a Dominican friary. Compare Spanish Jacinto, Italian Giacinto.
Sources 1
- Dictionary of American Family Names
Attested across 2 languages in the etymology graph.
Where in the world●
Sorted by bearers counted by national registers, records where none counts.
| Country | Most common spelling | Sources | |||||
|---|---|---|---|---|---|---|---|
| PL Poland | #55 | 227,193△ | 63K rec. | 1 in 169 | 229K | Jacek | 246 |
| GB United Kingdom | — | 5,950 | 3.7K rec. | — | 4 | Jacek | 115 |
| US United States | — | 2,870 | 17K rec. | 1 in 116K | 2.9K | Jacek | 256 |
| NO Norway | — | 1,201△ | 391 rec. | 1 in 4.6K | 3.4K | Jacek | 34 |
| SE Sweden | — | 1,131△ | 143 rec. | 1 in 9K | 1.1K | Jacek | 50 |
| CA Canada | — | 628 | 511 rec. | — | 1 | Jacek | 69 |
| DK Denmark | — | 357 | — | 1 in 16K | 357 | — | — |
| IE Ireland | #611 | 346 | 296 rec. | — | — | Jacek | 41 |
| IT Italy | — | 324 | 309 rec. | — | listed | Jacek | 31 |
| IS Iceland | — | 290 | 0 rec. | 1 in 1.2K | 290 | — | 1 |
| ES Spain | — | 161 | 771 rec. | 1 in 311K | 161 | Jacek | 62 |
| CZ Czechia | — | 70 | 0 rec. | 1 in 153K | 70 | — | 1 |
Roughly 227K people in Poland bear this name (about 1 in 169). Estimates project the name's share of our records onto national population, so each is only as good as the record base beside it — the Basis column gives that base; rows marked △ rest on fewer records than the estimate itself and are order-of-magnitude at best.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table. How that works.
Languages●
- Polish1.2M96%
- English20K2%
- German9.3K1%
- Norwegian Bokmål3.4K1%
- French3.2K1%
Show as table
| Name | Records | Note |
|---|---|---|
| Polish | 1,232,780 | 96% |
| English | 19,519 | 2% |
| German | 9,262 | 1% |
| Norwegian Bokmål | 3,384 | 1% |
| French | 3,204 | 1% |
Language is read off each record's context, not declared by the bearer; a share is of all records for this spelling.
Other recorded senses●
Jacek is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Swedish, Jacek är en polsk smekform till Hyazinth, ett namn buret av den helige Hyazinth eller Jacenty av Polen (1183–1257). Ursprungsnamnet är grekiskt (Hyákinthos) med oviss betydelse. I den grekiska mytologin var Hyakinthos en vacker yngling som av misstag dödades av guden Apollon. Från marken där den dödes blod spilldes växte blommor som kallades hyacinter.
as a nameFörnamn i Sverige. Kortfattat namnlexikon
Polish: pet form of JACENTY , now more common than the original from which it is derived. Short form: JACH .
as a word
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Over time●
Show as table
| Year | records |
|---|---|
| 1965 | 5 |
| 1972 | 5 |
| 1977 | 9 |
| 1978 | 7 |
| 1983 | 7 |
| 1984 | 6 |
| 1985 | 7 |
| 1987 | 5 |
| 1988 | 5 |
| 1989 | 5 |
| 1990 | 5 |
| 1993 | 9 |
| 1995 | 6 |
| 1996 | 8 |
| 1997 | 10 |
| 1998 | 7 |
| 1999 | 6 |
| 2001 | 22 |
| 2002 | 10 |
| 2003 | 16 |
| 2004 | 15 |
| 2005 | 25 |
| 2006 | 26 |
| 2007 | 28 |
| 2008 | 30 |
| 2009 | 20 |
| 2010 | 16 |
| 2011 | 23 |
| 2012 | 32 |
| 2013 | 37 |
| 2014 | 17 |
| 2015 | 8 |
| 2016 | 21 |
| 2017 | 14 |
| 2018 | 19 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 6 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 5 |
US SSA — National Baby Names (1880–present) — 41 years between 1965–2025. One register's own figures, never a sum across registers: two registers counting the same people would double them.
Notable people with this name●
- Jacek Malczewskib. 1854PLPolish painter (1854–1929)
- Jacek Komanb. 1956PLPolish/Australian actor
- Jacek Czaputowiczb. 1956PLPolish diplomat and political scientist (born 1956)
- Jacek Wszołab. 1956PLathletics competitor
- Roman Giertychb. 1971PLnot in their usual namePolish politician
- Jacek Bąkb. 1973PLPolish and French footballer
- Jacek Krzynówekb. 1976PLPolish footballer
- Jacek Dehnelb. 1980PLPolish writer, poet, translator and painter
- Kamil Glikb. 1988PLnot in their usual namePolish association football player
- Jacek Góralskib. 1992PLPolish association football player
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
Evidence●
Attested in 53 sources across 26 countries.
Reference works 4
- Dictionary of American Family Names
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia given-name tokens
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-09-12 data build · 313 rows in the corpus for this spelling.
Frequently asked questions
- How common is the name Jacek?
- We estimate roughly 233 thousand people bear Jacek (counting its spellings and scripts) across 11 countries in our records.
- In which country does Jacek have the most bearers?
- We estimate about 227 thousand people bear Jacek in Poland, more than in any other country in our records, where it is most often spelled jacek.
- Where is Jacek most common?
- Jacek is densest in Poland, where the national register counts about 1 in 169 people carrying it.
- How common is Jacek compared with other names?
- In Poland, Jacek is the 55th most common given name of 66,904 given names recorded there.
- Is Jacek a male or female name?
- Jacek is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- What does the name Jacek mean?
- Recorded meaning: from the personal name Jacek, a pet form of Jacenty (Latin Hyacinthus, Greek Hyakinthos).
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/jacekThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use. Bulk access and licensing.
About this data
Data snapshot . Figures are rebuilt periodically and will change.
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, “Jacek” — the 55th most common given name in Poland. Data snapshot 2026-09-12.