Last name มัจฉานุ (Fish 
, Matcharan 
, มัจฉานุ ) , all around the world, is a common cognomen. The surname มัจฉานุ is habitual in Macao, where it is quite a common surname, Hong Kong, and Myanmar. Not in comparison with a country's population, it most frequently occurs in the United States, Myanmar, and the United Kingdom. Very seldom, มัจฉานุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fish | United Kingdom, China, United States, Indonesia, Myanmar |
| Matcharan | Malaysia, India, Thailand |
| มัจฉานุ, Matcheangchai | Thailand |
Madchamonthon, and Mashanod