Nawab Abdullah Khan Bahadur Rohilla (died 1775)[1] was the third son of Nawab Ali Muhammad Khan of Rohilkhand and succeed his brother to the throne of Rohilkhand.

[2][3] On his death bed, his father Ali Mohammad Khan Rohilla made his ministers swear oaths on the Quran to respect his will and to act as protectors of his children until they reached maturity.

[4] After the return of Abdullah Khan, they initially made Saadullah Khan the Nawab of Moradabad but later they orchestrated an argument within the royal family and used it as a pretext to usurp the power and wealth of the orphans.

[5] Saadullah Khan was installed as a ruler to replace his elder brother Abdullah Khan, but despite his high spirits he was repeatedly blocked by Hafiz Rehmat Khan's machinations and retired in disgust to Aonla.

[6] He fought with Ahmed Shah Abidali in the Third Panipat War and received by him Jalesar and Faizabad as rewards for his service.