Is There an "Official German Language"? Understanding Pluricentric German

German Is a Pluricentric Language — Three National Standards

There is no single "official German language." Instead, German has three codified standard varieties, each official in its respective country:

1. Standard German (High German / Hochdeutsch) — Germany

• Basis: Luther's Bible, Grimm's dictionary, Duden orthography.
• Status: Sole official language (de facto) of Germany; 95M+ native speakers.
• Regulation: Rat für deutsche Rechtschreibung (Council for German Orthography) — 2006 reform binding for schools/govt.

2. Swiss Standard German (Schweizer Hochdeutsch) — Switzerland

• Status: One of 4 national languages (with French, Italian, Romansh); official at federal level.
• Differences: No ß (uses ss), vocabulary (Velo vs Fahrrad, Grüezi vs Grüß Gott), grammar (preterite rare, perfect dominant), pronunciation (no voiced obstruents).
• Diglossia: Swiss German dialects (Schwyzerdütsch) used orally; Swiss Standard German used in writing, formal speech, media.

3. Austrian Standard German (Österreichisches Deutsch) — Austria

• Status: Official language of Austria (8.9M).
• Differences: Vocabulary (Marille vs Aprikose, Paradeiser vs Tomate, Jänner vs Januar, Sessel vs Stuhl), grammar (tun/perfekt preferences), pronunciation (softer, vowel quality).
• Codification: Österreichisches Wörterbuch (since 1951, official school dictionary).

Other Recognized Varieties

• South Tyrol (Italy): German co-official; follows Austrian standard largely.
• Liechtenstein: Uses Swiss Standard German.
• Belgium (East Cantons): German official; follows German standard.
• Luxembourg: Luxembourgish (national) + French/German (admin); German standard used.
• Namibia: German recognized national language; ~30k speakers; follows German standard.

Mutual Intelligibility

Written standards: >95% mutually intelligible. Spoken standards: high intelligibility. Dialects (Low German, Bavarian, Alemannic, etc.): often not mutually intelligible with standard or each other.

Key Takeaway

"Official German" depends on the country. For international communication, Standard German (Germany) is the default reference, but Swiss and Austrian standards are equally legitimate in their domains. The Duden is authoritative for Germany; the Österreichisches Wörterbuch for Austria; the Schweizerisches Idiotikon documents Swiss usage.