Sidó

surname · Latin script

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

Sidó is a surname written in the Latin script, with more bearers in Denmark than in any other country.

rarermore common
  • DKDenmark1 in 28K(measured from records)
  • NONorway1 in 33K
  • SESweden1 in 57K

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.

Denmark (measured from records)

212 people

Sources
26 (measured from records)

Highest-authority source

1 in 28K (inferred from the name graph)

Denmark

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Sido in SE Sweden, HU Hungary.

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

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Attested across 14 languages in the etymology graph.

Where in the world(measured from records)

Sidó 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 Sidó is recorded, by country
CountryMost common spellingSources
DK Denmark2121 in 28K212——
SE Sweden1791 in 57K179Sido3
US United States1741 in 1.9M223—4
NO Norway1641 in 33K164——
HU Hungary≈110 est.≈1 in 90K—Sido26
CH Switzerland971 in 87K97—1

212 people counted by Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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 — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Skatteverket — Sök hur många som har ett visst namn (living population); SSB — Navnesøk (name-search service, living population); BFS — Familiennamen der Wohnbevölkerung (surnames). 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)

Sidó is also recorded as 5 other names, grouped separately because the records behind them do not connect to the one described above.

  • Slovak surname6 spellings in the group

    Most recorded in Slovakia, Czechia

    Languages: Slovak, Czech

    Also written Sido, Šido, Šidó, Šiďo

  • Arabic surname28 spellings in the group

    Most recorded in Syria, Philippines, United States, Türkiye

    Languages: Arabic, English, German

    Also written Sido, Sidoe, Sîdo, Şido, Sidö

  • Portuguese surname8 spellings in the group

    Most recorded in Brazil, Philippines, United States, Netherlands

    Also written Sido, Sidô, Şįdo, Sìdõ, Sídõ

  • Romanian name2 spellings in the group

    Also written Sido

  • a separate name3 spellings in the group

    Also written Sido, Sidô

2 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.

Evidence(measured from records)

Attested in 2 sources across 2 countries.

Official registers attesting Sidó
CountryRegisterYearCountRank
CH SwitzerlandBFS — Familiennamen der Wohnbevölkerung (surnames)20243#154,370

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

Frequently asked questions

In which country does Sidó have the most bearers?
In Denmark, the national register counted about 212 people named Sidó, more than in any other country we hold.
Where is Sidó most common?
Sidó is densest in Denmark, where the national register counts about 1 in 28 thousand people carrying it.
How common is the name Sidó?
In Denmark, the national register counted 212 people named Sidó, about 1 in 28 thousand residents.

What do you want to know about Sidó?

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/sid%C3%B3

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, “Sidó”. Data snapshot 2026-10-10.

See how Sidó parses inside a full name →