Sì

Sì may refer to:


 * Sì (dessert), a traditional Chinese dessert
 * Sì (operetta), a 1919 operetta in three acts composed by Pietro Mascagni
 * Sì (album), by Andrea Bocelli (2018)
 * "Sì" (Gigliola Cinquetti song), the Italian entry to the Eurovision Song Contest 1974
 * "Sì", a 1985 single by Carmen Russo
 * Si (surname) (姒), a Chinese surname