(born 2 July 1950) has been the Bishop of the Diocese of Faenza-Modigliana since his appointment by Pope Francis on 19 January 2015.

He holds a doctorate in philosophy at the Catholic University of Sacro Cuore in Milan in 1978.

Toso was one of the collaborators consulted by Pope Benedict XVI's encyclical Caritas in veritate.

On 22 October 2009, he was appointed secretary of the Pontifical Council for Justice and Peace and Titular Bishop of Bisarcio, the titular see held by Bishop Crepaldi before his transfer to Trieste, and was consecrated on 12 December 2009 by Cardinal Secretary of State Tarcisio Bertone.

On 19 January 2015 he was appointed bishop of the Roman Catholic Diocese of Faenza-Modigliana.