Duilio is a given name. Notable people with the name include:
Duilio Arigoni, Swiss chemist Duilio Benítez, Paraguayan footballer Duilio Beretta, Italian tennis player Duilio Brunello, Argentine politician Duilio Carrillo, Mexican modern pentathlete Duilio Davino, Mexican footballer Duilio Loi, Italian boxer Duilio Herrera, Mexican footballer Duilio Poggiolini, Italian manager, involved in the scandal Duilio Torres, Italian architect Duilio Vallebuona, Peruvian model, television personality and tennis player Duilio (singer), Swiss singer, represented Switzerland in the Eurovision Song Contest 1994
See also
Duílio (disambiguation) Italian ship Caio Duilio