Last name 墨子 (Mozi 
, Motse 
, 墨子 ) , worldwide, is a common family name. The surname 墨子 is habitual in Botswana, where it is quite a common surname, South Africa, where it is a rare surname, and India. Not in comparison with a country's population, it is the most numerous in India, South Africa, and the Democratic Republic of the Congo. Very seldom, 墨子 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mozi | China, South Africa, India, Egypt, Albania |
| Motse | United States, South Africa, Democratic Republic of the Congo, India, Botswana |
| 墨子 | China |
| Mozio | Mexico, Brazil, Argentina, Poland, France |