Family name Mertadinata (Mertadinata 
) , in the world, is a very rare cognomen. The family name Mertadinata is characteristic of South-eastern Asia, particularly Brunei, where it is quite a rare surname, and Malaysia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mertadinata | Brunei, Malaysia |
Herdy, and Siti Aqilah