Boleslav

loc · Latin script

Meaning: Bohemian ruler; pers

Recorded as a male name· opposite-gender records fall within measured source noise

Boleslav is a name written in the Latin script, with more bearers in Poland than in any other country.

rarermore common
  • CZCzechia1 in 8K(measured from records)
  • UAUkraine≈1 in 41Kas Болеслав
  • RURussia≈1 in 273Kas Болеслав

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Boleslav itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Poland (measured from records)

16,700 named Bolesław, 2026

2 (measured from records)

recorded for this name

Sources
91 (measured from records)

Highest-authority source

1 in 8.0K (inferred from the name graph)

Czechia

measured from records inferred from the name graph

Spellings & scripts(measured from records)

BoleslavLatin(measured from records)
БолеславCyrillic(measured from records)

Locally spelled Болеслав in UA Ukraine, RU Russia, BY Belarus and Boleslaw in US United States.

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)

Bohemian ruler; pers. name

Sources 1

  • Pronouncing Dictionary of Proper Names

Attested across 7 languages in the etymology graph.

Where in the world(measured from records)

Boleslav 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.

Where Boleslav is recorded, by country
CountryMost common spellingSources
PL Poland—16,700as Bolesław1 in 2.3K18K—9
CZ Czechia—1,3421 in 8K1.3KBoleslav33
UA Ukraine#624≈1,100 est.≈1 in 41K—Болеслав18
RU Russia—≈520 est.≈1 in 273K#1,265Болеслав91
US United States—287as Boleslaw1 in 1.2M287Boleslaw17
BY Belarus#567≈26 est.≈1 in 368K—Болеслав9
SI Slovenia—181 in 117K18——
IS Iceland—5as Boleslaw1 in 70K5——

16,700 people counted by dane.gov.pl — PESEL given names (first + second name position, 2026-01-20), 2026. 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: dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (names); MVČR — living population register 2017; Census Bureau — First Name Frequency 2020 by sex; SURS — resident population given names; 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).

Other names spelled this way(inferred from the name graph)

Boleslav is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Bulgarian given name6 spellings in the group

    Most recorded in Russia, Kazakhstan

    Also written Болеслав

26 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Other recorded senses(measured from records)

Boleslav is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Russian, "most glorious."

    as a wordA Dictionary of Period Russian Names (Wickenden / Goldschmidt 1996)

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.

Notable people with this name(measured from records)

500100015002000Boleslaus I, Duke of Bohemia, b. 915Boleslaus II, Duke of Bohemia, b. 927Boleslaus III, Duke of Bohemia, b. 950Boleslav Markevich, b. 1822Ondřej Boleslav Petr, b. 1853Aurel Stodola, b. 1859Boleslav Vomáčka, b. 1887Boleslav Vladimirovich Likhterman, b. 1902Boleslav Kvapil, b. 1934Bolek Polívka, b. 1949

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(measured from records)

Attested in 17 sources across 7 countries.

Official registers attesting Boleslav
CountryRegisterYearCountRank
CZ CzechiaMVČR — living population register 2017—1.3K#424
CZ Czechianaše jména — 2016 MVČR snapshot—671#474
CZ CzechiaKdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end)—671#467
PL Polanddane.gov.pl — PESEL living persons (names)—42#3,469
PL Polanddane.gov.pl — PESEL given names (first + second name position, 2026-01-20)202642#3,744
SI SloveniaSURS — resident population given names201920#1,587
SI SloveniaSURS — resident population given names201820#1,548
SI SloveniaSURS — resident population given names201720#1,535
SI SloveniaSURS — resident population given names201620#1,522
SI SloveniaSURS — resident population given names201520#1,496
SI SloveniaSURS — resident population given names201420#1,479
SI SloveniaSURS — resident population given names201320#1,460

Reference works 3

  • Wikipedia given-name tokens
  • Wikidata name items (native-script + romanized given/family names)
  • Kotík, Antonín, Naše příjmení (nové vydání, 1897)

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

Where does the name Boleslav come from?
Bohemian ruler; pers. name Recorded by Pronouncing Dictionary of Proper Names.
What does the name Boleslav mean?
Recorded meaning: Bohemian ruler; pers.
In which country does Boleslav have the most bearers?
In Poland, the national register counted about 17 thousand people named Bolesław, more than in any other country we hold.
Where is Boleslav most common?
Measured as a share of residents rather than as a count, Boleslav is densest in Czechia — about 1 in 8.0 thousand people — even though Poland holds more of our records for it.
How common is the name Boleslav?
In Czechia, the national register counted 1,342 people named Boleslav, about 1 in 8.0 thousand residents.
How common is Boleslav compared with other names?
In Belarus, Boleslav is the 567th most common given name of 7,499 given names recorded there.

What do you want to know about Boleslav?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/boleslav

The 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, “Boleslav” — the 567th most common given name in Belarus. Data snapshot 2026-10-10.

See how Boleslav parses inside a full name →