Surname Pichamuthu (Pichamuthu 
) , worldwide, is a rare family name. The surname Pichamuthu is characteristic of Malaysia, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and India. Measured by absolute frequency, the name is most common in Malaysia, India, and the United States. Likewise, Pichamuthu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pichamuthu | United Kingdom, United States, India, Malaysia |