Family name Rahmanullah (Rahmanullah 
) , in all the world, is a rare last name. The cognomen Rahmanullah is habitual in Saudi Arabia, where it is a rare surname, Indonesia, where it is a very rare surname, and Malaysia. More prevalently, Rahmanullah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rahmanullah | United Arab Emirates, Oman, Indonesia, Afghanistan, Saudi Arabia |
Ali, Nassir, Wardak, Qareeb, Maulana, Mehirdel, Shirzad, Siddiqi, Rahmani, Roghani, Darwish, Daoudzai, Lakanwall, Manullah, Mahmoodi, Shenwari, Shinwari, Ahmadzai, Nasary, Khogyani, Rohani, Karimi, Safi, Khan, Wafa, Mayar, Arman, Tanha, Niazi, Noori, Hayat, Wazir, Ullah, Marwat, Shahab, Armani, Ahmadi, Afridi, Afghan, Rahman, and Rashidzay