Cecylia
given name · Latin script
Meaning: Cecilia, Cecily
Recorded as a female name· opposite-gender records fall within measured source noise
/t͡sɛt͡sɨlja/(machine-generated) pronunciation, model-generated
Cecylia is a given name written in the Latin script, with more bearers in Poland than in any other country.
- PLPoland1 in 1.6K(measured from records)
- USUnited States1 in 637K
- SESweden1 in 98K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- Poland (measured from records)
- Sources
- 98 (measured from records)
- 1 in 1.6K (inferred from the name graph)
24,431 people, 2026
Highest-authority source
Poland
measured from records inferred from the name graph
Meaning & origin(measured from records)
Cecilia, Cecily
Sources 1
- Polish Personal Names (CIA Foreign Names Studies, ch. 24)
Attested across 17 languages in the etymology graph.
Where in the world(measured from records)
Cecylia 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 | ||||
|---|---|---|---|---|---|---|
| PL Poland | #254 | 24,431 | 1 in 1.6K | 24K | Cecylia | 76 |
| US United States | — | 522 | 1 in 637K | 522 | Cecylia | 98 |
| BR Brazil | — | 128 | 1 in 1.7M | 128 | — | — |
| SE Sweden | — | 104 | 1 in 98K | 104 | Cecylia | 4 |
| GB United Kingdom | — | ≈88 est. | ≈1 in 750K | listed | Cecylia | 25 |
| BE Belgium | — | ≈28 est. | ≈1 in 414K | — | Cecylia | 5 |
| AT Austria | — | ≈21 est. | ≈1 in 415K | 2 | — | — |
| IS Iceland | — | 2 | 1 in 175K | 2 | — | — |
24,431 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); Census Bureau — First Name Frequency 2020 by sex; IBGE — names by decade (Kaggle mirror); Skatteverket — Sök hur många som har ett visst namn (living population); the gb-nisra-baby-names-ni register; Statistik Austria — STATatlas Vornamen WFS (per-name time series 1984–2024); 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).
Notable people with this name(measured from records)
- Cecilia Yu So-sab. 1761KRnot in their usual nameKorean martyr, catholic saint
- Zofia Szeptyckab. 1837PLnot in their usual namePolish painter, writer (1837–1904)
- Cecylia Plater-Zyberkb. 1853PLPolish journalist (1853–1920)
- Cecylia Niewiadomskab. 1855PLPolish teacher, translator and publisher (1855-1925)
- Cecylia Walewskab. 1859PLPolish journalist
- Wanda Bobkowskab. 1880PLnot in their usual namePolish historian and pedagogue
- Cecylia Słapakowab. 1900PLPolish journalist
- Cecylia Roszakb. 1908PLPolish nun, Righteous among the Nations
- Cecylia Vetulanib. 1908PLPolish art historian (1908–1980)
- Alicja Curanovićb. 1981PLnot in their usual namePolish political scientist
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).
How to address them(machine-generated)
A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence(measured from records)
Attested in 28 sources across 15 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 24K | #137 |
| PL Poland | dane.gov.pl — PESEL given names (first + second name position, 2026-01-20) | 2026 | 24K | #137 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 522 | #19,978 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 128 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 128 | #34,648 |
| SE Sweden | Skatteverket — Sök hur många som har ett visst namn (living population) | — | 104 | #8,320 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2020 | 103 | — |
| PL Poland | Ministry of Digitalization — Imiona nadawane dzieciom w Polsce (2000–present) | 2025 | 59 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | 2010 | 59 | — |
| SE Sweden | SCB — Namnstatistik (to 2023) | 2015 | 51 | — |
| SE Sweden | SCB — Namnstatistik (to 2023) | 2014 | 50 | — |
| SE Sweden | SCB — Namnstatistik (to 2023) | 2002 | 50 | — |
Reference works 4
- Dictionary of American Family Names
- Wikipedia given-name tokens
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
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
- What does the name Cecylia mean, and where does it come from?
- Cecilia, Cecily Recorded by Polish Personal Names (CIA Foreign Names Studies, ch. 24).
- How do you pronounce Cecylia?
- A machine transcription gives /t͡sɛt͡sɨlja/ (IPA) for Polish.
- Is Cecylia a male or female name?
- Cecylia is a female 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 are other forms of the name Cecylia?
- In the etymology graph, Cecilia, Sheila and Celia are forms of the same name in other languages.
- In which country does Cecylia have the most bearers?
- In Poland, the national register counted about 24 thousand people named Cecylia, more than in any other country we hold, where it is most often spelled cecylia.
- Where is Cecylia most common?
- Cecylia is densest in Poland, where the national register counts about 1 in 1.6 thousand people carrying it.
- How common is the name Cecylia?
- In Poland, the national register counted 24,431 people named Cecylia in 2026, about 1 in 1.6 thousand residents.
- How common is Cecylia compared with other names?
- In Poland, Cecylia is the 254th most common given name of 25,969 given names recorded there.
What do you want to know about Cecylia?
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/cecyliaThe 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, “Cecylia” — the 254th most common given name in Poland. Data snapshot 2026-10-10.