Hasan b. Ali (disambiguation)

Hasan b. Ali may refer to one of the following holy Imams of the Shia:

• Imam al-Hasan b. Ali b. Abi Talib (a) (d. 50/670), known as Imam al-Hasan al-Mujtaba, was the second Imam of the Shi'a Muslim.
• Imam al-Hasan b. Ali al-Askari (a) (d. 260/874) was the 11th Imam of Twelver Shi'a and the father of Imam al-Mahdi (a).