Alessandro Carmelo Ruffinoni is the retired bishop of Caxias do Sul and a Scalabrinian priest.

Born in Piazza Brembana in 1943, fourth of five children, he completed his studies between Rezzato and Cermenate.

He entered the Scalabrinian Congregation in 1961, to be ordained priest on 8 March 1970.

From 1988 to 1998 he was director of the Centro Missionero P. Luigi Valtulini in Ciudad del Este, Paraguay; and from 1999 to 2004 he was provincial superior in Brazil.

He succeeded the see on 6 July 2011, and remained in office until 26 June 2019 when Pope Francis accepted his resignation.