1. Müller
The most common surname in Germany is Müller! From the word Mühle (mill) and Müller (mill worker). From the 6th to the 15th century AD in Germany, almost every village had a mill, so there were many mill workers. According to statistics, there are about 700,000 people in Germany with the surname Müller.
2. Schmidt
Schmied refers to a forger, usually a "blacksmith". There are more than 230,000 Schmidts registered in the phone book alone, and those with the surname Schmidt are particularly concentrated in central Germany.
3. Schneider
Schneider actually means tailor, so this surname also originated from the profession.