Asadullāh, also written Asadollah, **Assadullah ** or Asad Ullah, is a male Muslim given name meaning Lion of Allah. The name was initially used to refer to the Islamic Prophet Muhammad's closest kinsmen Hamza and Ali. Initially, the title was first given to Hamza ibn Abd al-Muttalib, Muhammad's uncle. After the Battle of the Trench, when Ali defeated Amr ibn Abd al-Wud, Muhammad reportedly gave Ali the name Asadullah (Lion of God) and praised him, saying 'Ali's strike on Amr ibn Abd al-Wud is greater than the worship of both mankind and jinn until the Day of Judgement.' The name may additionally refer to:

• Samir (Ajay Naidu)