Globally, Thambu (Thambu 
) is a rare masculine first name. The forename Thambu is characteristic of India, where it is a very rare boy's name, and the United Kingdom. Also, Thambu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Thambu | Kenya, India, Malaysia, South Africa, Canada |
| thambu ram, mm Recipient of Vir Chakra, IN |
|