Rietta

given name · Latin script

A female name· listed as female by the registers that count names by sex

(measured from records)Officially recorded in 6 countries · latest register: Guyana, 2025

Pronunciation:

Rietta is a female given name written in the Latin script, with more bearers in South Africa than in any other country.

  • GYGuyana1 in 375K(measured from records)
  • NLNetherlands1 in 1.2M
  • DKDenmark1 in 2M

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

South Africa (inferred from the name graph)

≈110 people, est.

Record sources
90 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 375K (inferred from the name graph)

Guyana

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

Locally spelled Riëtta in NL Netherlands.

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)

Rietta 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 Rietta is recorded, by country
CountryMost common spellingSources
ZA South Africa≈110 est.≈1 in 561K—Rietta4
US United States1091 in 3.1M109Rietta90
GH Ghana≈69 est.≈1 in 498K—Rietta1
NG Nigeria≈45 est.≈1 in 5.2M—Rietta3
GB United Kingdom≈36 est.≈1 in 1.9M—Rietta24
NL Netherlands141 in 1.2M14Riëtta3
IE Ireland≈10 est.≈1 in 557K—Rietta1
GY Guyana21 in 375K2—1

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; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Guyana — Official List of Electors July 2025. 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)

Rietta is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Riëtta

31 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.

How to address them

(machine-generated)
InformalHi Rietta,

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)

8 registers and reference works attest this spelling, across 6 countries.

Official registers attesting Rietta
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020109#52,133
US United StatesSSA — National Baby Names (1880–present)19597—
US United StatesSSA — National Baby Names (1880–present)19616—
US United StatesSSA — National Baby Names (1880–present)19785—
NL NetherlandsMeertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017)—5#42,347
US United StatesSSA — National Baby Names (1880–present)19485—
US United StatesSSA — National Baby Names (1880–present)19425—
GY GuyanaGuyana — Official List of Electors July 202520252#592

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

Frequently asked questions

Is Rietta a male or female name?
Rietta is a female name. National registers that list it by sex list it as female: United States (Census Bureau, 2020).
In which country does Rietta have the most bearers?
Mondonomo estimates about 114 people named Rietta in South Africa, more than in any other country we hold, where it is most often spelled rietta.
Where is Rietta most common?
Measured as a share of residents rather than as a count, Rietta is densest in Guyana — about 1 in 375 thousand people — even though South Africa holds more of our records for it.
How common is the name Rietta?
In the United States, the national register counted 109 people named Rietta in 2020, about 1 in 3.1 million residents.

What do you want to know about Rietta?

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

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, “Rietta”. Data snapshot 2026-10-13.

See how Rietta parses inside a full name →