Lake Sirio (Italian: Lago Sirio) is a lake in northern Italy. Located between the comunes of Ivrea and Chiaverano, it is the largest of a group of five glacial lakes known as Laghi di Ivrea. The historic Società Canottieri Sirio, founded in 1887, occupies its southern shore.

• Lake Sirio on Visit Canavese on Turismo Torino e Provincia—(in Italian)