Last name Tengku Ahmad Zainul (Tengku Ahmad Zainul 
) , across the world, is an extremely rare surname. The cognomen Tengku Ahmad Zainul is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname. More prevalently, Tengku Ahmad Zainul is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tengku Ahmad Zainul | Malaysia |