Surname Thanggavelu (Thanggavelu 
) , across the world, is a very rare last name. The surname Thanggavelu is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thanggavelu | Malaysia |
T Karpgam, Others, Kaliani, Hemashangari, and Krishnaveni