Sibaja
surname · Latin script
Recorded for both men and women· direction only, no split published
/sibaxa/(machine-generated) pronunciation, model-generated
Sibaja is a surname written in the Latin script, with more bearers in Costa Rica than in any other country, where it is the 88th most common surname. Recorded meaning: Borrowed from Spanish Sibaja; this surname is predominantly found in Costa Rica.
- CRCosta Rica1 in 332(measured from records)
- COColombia≈1 in 29K
- USUnited States1 in 625K
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.
- Costa Rica (measured from records)
- Sources
- 133 (measured from records)
- 1 in 332 (inferred from the name graph)
15,362 people
Highest-authority source
Costa Rica
measured from records inferred from the name graph
Meaning & origin(measured from records)
Borrowed from Spanish Sibaja; this surname is predominantly found in Costa Rica.
Sources 1
Where in the world(measured from records)
Sibaja 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 | ||||
|---|---|---|---|---|---|---|
| CR Costa Rica | #88 | 15,362 | 1 in 332 | 15K | Sibaja | 77 |
| CO Colombia | — | ≈1,700 est. | ≈1 in 29K | 4 | Sibaja | 52 |
| US United States | — | 532 | 1 in 625K | 533 | Sibaja | 133 |
| ES Spain | — | 230 | 1 in 217K | 230 | Sibaja | 35 |
| HN Honduras | #990 | ≈150 est. | ≈1 in 61K | — | Sibaja | 10 |
| NI Nicaragua | — | ≈32 est. | ≈1 in 196K | — | Sibaja | 6 |
15,362 people counted by TSE — electoral roll (padrón) names. 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: TSE — electoral roll (padrón) names; Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; the co-datosgov-candidates register; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal). 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 recorded senses(measured from records)
Sibaja 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 Latvian, neliela sala Filipīnās, Rietumu Visajas reģionā, Sulu jūras ziemeļaustrumos
as a wordTēzaurs.lv (Dictionary and Thesaurus of Latvian, AiLab / LU MII)
In Latvian, pilsēta Krievijā, Baškortostānas Republikā, 62500 iedzīvotāju (2014. g.)
as a wordTēzaurs.lv (Dictionary and Thesaurus of Latvian, AiLab / LU MII)
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)
- José Sibajab. 1973CRCosta Rican-American trumpeter
- Edgardo Araya Sibajab. 1973CRCosta Rican lawyer
- Fausto Gonzálezb. 1978CRnot in their usual nameCosta Rican footballer
- Jonathan Sibajab. 1987CRCosta Rican association football player
- Iván José Sibajab. 2000Costa Rican athletics competitor (born 2000)
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)
Evidence(measured from records)
Attested in 13 sources across 7 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CR Costa Rica | TSE — electoral roll (padrón) names | — | 15K | #128 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 533 | #43,628 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 532 | #40,976 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 348 | #55,237 |
| ES Spain | INE — Apellidos más frecuentes (Padrón Municipal) | — | 230 | #14,862 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 230 | #14,849 |
| CO Colombia | Colombia — Función Pública SIGEP II public-servant name corpus (datos.gov.co) | — | 4 | #112 |
| CR Costa Rica | TSE — Consulta de nombres (Padrón Nacional Electoral name enumeration) | — | — | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 1
- 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 2026-10-09 data build.
Frequently asked questions
- What does the name Sibaja mean, and where does it come from?
- Borrowed from Spanish Sibaja; this surname is predominantly found in Costa Rica. Recorded by Wiktionary.
- How do you pronounce Sibaja?
- A machine transcription gives /sibaxa/ (IPA) for Spanish.
- In which country does Sibaja have the most bearers?
- In Costa Rica, the national register counted about 15 thousand people named Sibaja, more than in any other country we hold, where it is most often spelled sibaja.
- Where is Sibaja most common?
- Sibaja is densest in Costa Rica, where the national register counts about 1 in 332 people carrying it.
- How common is the name Sibaja?
- In Costa Rica, the national register counted 15,362 people named Sibaja, about 1 in 332 residents.
- How common is Sibaja compared with other names?
- In Costa Rica, Sibaja is the 88th most common surname of 8,899 surnames recorded there.
What do you want to know about Sibaja?
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/sibajaThe 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, “Sibaja” — the 88th most common surname in Costa Rica. Data snapshot 2026-10-10.