Surname สาธุ (Amu 
, สาธุ 
, Sathichan ) , in the entire world, is a common family name. The cognomen สาธุ is habitual in Ghana, where it is quite a common surname, Lesotho, where it is quite a rare surname, and Papua New Guinea. Not in comparison with a country's population, it most frequently occurs in Nigeria, Ghana, and India. Also, สาธุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amu | Indonesia, Ghana, Nigeria, Colombia, India |
| สาธุ | Thailand |
| Sathichan | India |
| Sathrugnan | Singapore, United States, Malaysia |
Amen, Amenah, Amenee, Amenoh, Amuay, Amue, Saatu, Sadutch, Sataphun, Satdha, Satdichanh, Satgunanathan, Sathab, Sathabhanik, Sathabthi, Sathanchat, Sathayut, Sathchuphong, Sathchupong, Sathisw, Sathjuaun, Sathkit, Sathkuravanith, Sathpat, Sathpon, Sathpoom, Sathpradid, Sathsith, Sathsue, Sathsuk, Sathtawut, Saththasri, Sathti, Sathtrawu, Sathtrukram, Sathu, Sathueng, Sathujarat, Sathupap, Sathuphong, Sathupun, Sathurat, Sathurath, Sathusan, Sathuschai, Sathuvan, Satjanhuruk, Satphasaevee, Satphu, Satrabhandhu, Satthachure, Satthanat, Satthipun, Satthom, Satthphon, Satu, and Satwut