Al-Tusi or Tusi is the title of several Iranian scholars who were born in the town of Tous in Khorasan. Some of the scholars with the al-Tusi title include:

• Ferdowsi Tusi (935-1020), Persian poet
• Abu Ja'far al-Tusi or Sheikh Tusi (995-1067), Islamic scholar
• Asadi Tusi (d. 1072), Persian poet
• Nizam al-Mulk al-Tusi (1018-1092), Persian vizier
• Sharaf al-Din al-Tusi or Sharafeddin Tusi (1135-1213), Persian mathematician
• Nasir al-Din al-Tusi (1201-1274), Persian polymath
• Muhammad ibn Muhammad ibn Uthman al-Bana al-Tusi

it:Al Tusi