Secilia
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
/sesilja/(machine-generated) pronunciation, model-generated
Secilia is a given name written in the Latin script, with more bearers in Tanzania than in any other country.
- USUnited States1 in 929K(measured from records)
- NANamibia≈1 in 1.9K
- TZTanzania≈1 in 3K
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.
- Tanzania (inferred from the name graph)
- Sources
- 74 (measured from records)
- ≈1 in 1.9K (inferred from the name graph)
≈19,000 people, est.
Highest-authority source
Namibia, est.
measured from records inferred from the name graph
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Sources 1
Where in the world(measured from records)
Secilia 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 | |||
|---|---|---|---|---|---|
| TZ Tanzania | ≈19,000 est. | ≈1 in 3K | — | Secilia | 15 |
| NA Namibia | ≈1,400 est. | ≈1 in 1.9K | 2 | — | 7 |
| BR Brazil | 567 | 1 in 373K | 731 | Secilia | 19 |
| US United States | 358 | 1 in 929K | 357 | Secilia | 74 |
| PE Peru | ≈120 est. | ≈1 in 266K | — | Secilia | 19 |
| DO Dominican Republic | ≈90 est. | ≈1 in 117K | — | Secilia | 8 |
| FI Finland | 24 | 1 in 232K | 62 | — | — |
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; IBGE — names by decade (Kaggle mirror); IBGE — Nomes (census name API); DVV — Etunimitilasto (Finnish given names register); DVV — Nimipalvelu (Finnish name service, per-name lookup); ECN Government Gazette 8791 — 2025 local authority candidates. 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).
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 22 sources across 14 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BR Brazil | IBGE — Nomes (census name API) | — | 731 | #11,250 |
| BR Brazil | Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA) | — | 727 | #5,726 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 567 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 561 | #12,256 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2020 | 412 | — |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 357 | #26,142 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2010 | 276 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2000 | 241 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1980 | 218 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1970 | 191 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | 2020 | 155 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1960 | 146 | — |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- How do you pronounce Secilia?
- A machine transcription gives /sesilja/ (IPA) for Spanish.
- Is Secilia a male or female name?
- Secilia 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.
- In which country does Secilia have the most bearers?
- Mondonomo estimates about 19 thousand people named Secilia in Tanzania, more than in any other country we hold, where it is most often spelled secilia.
- How common is the name Secilia?
- In Brazil, the national register counted 567 people named Secilia in 2022, about 1 in 373 thousand residents.
What do you want to know about Secilia?
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/seciliaThe 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, “Secilia”. Data snapshot 2026-10-10.