Italian ship Sirio

Sirio has been borne by at least three ships of the Italian Navy and may refer to:


 * ITALIAN TORPEDO BOAT Sirio, a Sirio-class torpedo boat launched in 1905 and discarded in 1923.
 * ITALIAN TORPEDO BOAT Sirio, a Spica-class torpedo boat launched in 1935 and stricken in 1959.
 * ITALIAN PATROL VESSEL Sirio, a Sirio-class patrol vessel launched in 2002.