Kashani or Qashani (Persian: کاشانی), often shortened to Kashi or al-Kashi (Persian: کاشی), is a surname meaning a person who comes from Kashan, Iran. It is also used as a feminine given name. Notable persons with that name include:

• Abū Zayd ibn Muḥammad ibn Abī Zayd (died 1219), called Abu Zayd al-Kashani, Persian potter
• Abu al-Qasim Kashani (died after 1324), Persian historian, author of the History of Öljaitü
• Abd al-Razzaq Kāshānī, 14th-century Sufi mystic
• Mahmud ibn Ali al-Qashani (died 1335), Sufi scholar
• Abbas Hosseini Kashani (1931-2010), Iranian Grand Ayatollah
• Abol-Ghasem Kashani (1882–1962), Iranian Ayatollah and politician
• Afdal al-Din Kashani (died c. 1214), Persian poet and philosopher
• Ali Hojjat Kashani (1921–1979), Iranian military officer and politician
• Dariush Kashani, American-Iranian actor
• Eliezer Kashani (1923–1947), an Irgun member in Mandatory Palestine
• Firoozeh Kashani-Sabet, American-Iranian historian
• Habib Kashani, Iranian businessman and football administrator
• Jafar Kashani (1944–2019), Iranian footballer
• Jamshīd al-Kāshī (c. 1380–1429), Persian astronomer and mathematician
• Khalil Mobasher Kashani (born 1951), Iranian Grand Ayatollah
• Mahmoud Kashani (born 1942), Iranian politician and academic
• Mehran Kashani (born 1969), Iranian engineer and screenwriter
• Mohammed Emami-Kashani (born 1931), Iranian Ayatollah and politician
• Mohsen Fayz Kashani (1598–1680), Iranian poet, philosopher and muhaddith
• Muhtasham Kashani (1500–1588), Persian poet
• Sarmad Kashani (c. 1590–1661), Persian mystic, poet and saint in India of Jewish or Armenian origin
• Shahrum Kashani (1971–2021), Italian-Iranian pop singer

• Kashani Ríos (born 1991), Panamanian athlete