Fethi is the Turkish spelling of the Arabic name Fathi (Arabic: فَتْحِي fat·ḥiy/ fat·ḥī/ fat·ḥy) which means "victorious, triumphant". Notable people with the name include:

Given name Féthi Baccouche (born 1960), Tunisian long-distance runner Fethi Benslama (born 1961), Paris-based Tunisian psychoanalyst Colonel Fethi Bey (1888–1919), Turkish nationalist, journalist and war hero Fethi Boucetta (born 1963), Algerian Guantanamo detainee Fethi Demircan (born 1938), Turkish footballer and manager Fethi Ghariani (born 1964), Tunisian volleyball player Fethi Gürcan (1922–1964), Turkish major and equestrian Fethi Haddaoui (1961–2024), Tunisian actor Féthi Harek (born 1982), Algerian footballer Fethi Heper (1944–2025), Turkish footballer Fethi Jamal (born 1959), Moroccan footballer and coach Fethi Laabidi, Tunisian football manager Fethi Missaoui (born 1974), Tunisian boxer Fethi Nourine (born 1991), Algerian judoka Ali Fethi Okyar (1880–1943), Turkish diplomat Ahmed Fethi Pasha (1801–1858), Ottoman marshal, ambassador and industrialist Fethi Safwat Qirdar (1896–1966), Iraqi painter and sculptor Fethi Sekin (1973–2017), Turkish police office killed on duty Fethi Tarbel (born 1972), Libyan lawyer and activist Fethi Zghonda, Tunisian musician and composer

Surname Ibrahim Faraj Yasser Fethi (born 1984), Egyptian athlete

See also Fathi Fethi Paşa Korusu, park in Istanbul