Mustermann

 

German Wikipedia has an article on:

Mustermann

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English Wikipedia has an article on:

List of placeholder names by language

Wikipedia

Muster (“specimen, example”) +‎ -mann (common ending of German surnames)

Mustermann m or f (proper noun, surname, masculine genitive Mustermanns or (with an article) Mustermann, feminine genitive Mustermann, plural Mustermanns)

1. a surname used as an example on ID cards, forms, and the like

• Erika Mustermann (placeholder woman's name)
• Max Mustermann (placeholder man's name)