Rocko

given name · Latin script

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

Rocko is a given name written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • USUnited States1 in 950K(measured from records)
  • NLNetherlands1 in 2.2M

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

350 people, 2020

Sources
26 (measured from records)

Highest-authority source

1 in 950K (inferred from the name graph)

United States

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin

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

Where in the world(measured from records)

Rocko 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 Rocko is recorded, by country
CountryMost common spellingSources
US United States3501 in 950K348Rocko26
NL Netherlands81 in 2.2M8——
MX Mexico———Rocko18
AR Argentina——2Rocko10
CO Colombia———Rocko6
CL Chile——1Rocko7
BO Bolivia———Rocko2

350 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. 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; RENAPER — Nombres de nacimientos (2012–present); SRCEI — Nombres más comunes (guaguas, 1920–2021); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018). 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)

Rocko is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • Polish surname2 spellings in the group

    Most recorded in Poland

    Also written Roćko

  • German given name2 spellings in the group

    Most recorded in Germany, United States

    Also written Ŗoçķo

  • a separate name2 spellings in the group

    Also written Ročko

36 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 19 sources across 10 countries.

Official registers attesting Rocko
CountryRegisterYearCountRank
US United Stateswru Name Dictionary — US surnames, voter-file supplement (Khanna et al.)———

Reference works 1

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

Is Rocko a male or female name?
Rocko is a male 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 Rocko have the most bearers?
In the United States, the national register counted about 350 people named Rocko, more than in any other country we hold, where it is most often spelled rocko.
Where is Rocko most common?
Rocko is densest in the United States, where the national register counts about 1 in 950 thousand people carrying it.
How common is the name Rocko?
In the United States, the national register counted 350 people named Rocko in 2020, about 1 in 950 thousand residents.

What do you want to know about Rocko?

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

The same 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), and bulk access is licensed separately.

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, “Rocko”. Data snapshot 2026-10-10.

See how Rocko parses inside a full name →