Saint-Yves

Saint-Yves, Saint Ivo, or Sant'Ivo can refer to:

Christian saints

 * Saint Ivo of Chartres (c. 1040-1115), bishop of Chartres, feast day 23 May
 * Saint Ivo of Kermartin (1253-1303), patron saint of Brittany, lawyers and abandoned children, feast day 19 May

Churches

 * Sant'Ivo alla Sapienza in Rome, dedicated to Ivo of Kermartin
 * Sant'Ivo dei Bretoni in Rome, also dedicated to Ivo of Kermartin, a French national church

Surname

 * Saint-Yves (surname), a French surname