Sundag

surname · Latin script

Recorded for both men and women· direction only, no split published

Sundag is a surname written in the Latin script, most frequently recorded in Germany. Recorded meaning: German surname from weekday name Sonntag 'Sunday'; dialect/spelling variant, likely nickname or reference to Sunday-born/sunday-related person.

rarermore common
  • DEGermany
  • USUnited States

Where the name is found, darker where our sources hold more of it. No national register counts its bearers anywhere we hold data, so the map carries no figures. One hue, darker where it is more common; hover a country for its figure.

Meaning & origin(measured from records)

German surname from weekday name Sonntag 'Sunday'; dialect/spelling variant, likely nickname or reference to Sunday-born/sunday-related person. Bearer count not given.

Sources 1

  • Deutscher Familiennamenatlas, Band 5: Familiennamen nach Beruf und persönlichen Merkmalen

Where in the world(measured from records)

Recorded in:

No national register we accept counts this name’s bearers, so the page lists where it is found and publishes no figure.

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)

Sundag is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In German, From the day name Sunday (dial. form); likely motivated by birth on Sunday or by Sunday service duty. Bearer count: 107.

    as a nameDeutscher Familiennamenatlas, Band 5: Familiennamen nach Beruf und persönlichen Merkmalen

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.

Evidence(measured from records)

Attested in 3 sources across 1 country.

Official registers attesting Sundag
CountryRegisterYearCountRank
DE GermanyDeutscher Familiennamenatlas Band 5———

Reference works 2

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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

Where does the name Sundag come from?
German surname from weekday name Sonntag 'Sunday'; dialect/spelling variant, likely nickname or reference to Sunday-born/sunday-related person. Bearer count not given. Recorded by Deutscher Familiennamenatlas, Band 5: Familiennamen nach Beruf und persönlichen Merkmalen.
What does the name Sundag mean?
Recorded meaning: German surname from weekday name Sonntag 'Sunday'; dialect/spelling variant, likely nickname or reference to Sunday-born/sunday-related person.
In which country does Sundag have the most bearers?
Sundag is most frequently recorded in Germany.

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Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/sundag

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 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, “Sundag”. Data snapshot 2026-10-10.

See how Sundag parses inside a full name →