Fassi
Fassi is a surname. Notable people with the surname include:

 Abdelkader Fassi Fehri (born 1947), Moroccan linguist
 Aphelele Fassi (born 1998), South African professional rugby union player
 Carlo Fassi (1929–1997), Italian figure skater and international coach
 Farida Fassi, Moroccan professor of physics
 Hatoon al-Fassi (born 1964), Saudi Arabian historian, author and women's rights activist
 Juan Pablo Fassi (born 1994), retired professional Mexican footballer
 Imam Fassi (1760?–1863), originator of the Fassi family of Sheikhs 
 María Fassi (born 1998), Mexican professional golfer
 Sebastián Fassi (born 1993), Mexican professional footballer
 Sonwabile Fassi (born 1991), South African former cricketer

Al Fassi 
 Allal al-Fassi (1910–1974), Moroccan politician, writer, poet and Islamic scholar
 Taieb Fassi Fihri (born 1958), Moroccan politician
 Mohammed al Fassi (1952–2002), Saudi businessman
 Malika al-Fassi (1919–2007), Moroccan writer and nationalist

See also 
 Al-Fasi
 El Fassi
 Allal al Fassi Dam, embankment dam on the Sebou River in Morocco
 Zawiya of Sidi Abdelkader al-Fassi