Collagna () is a (borough) of the (municipality) of Ventasso in the Province of Reggio Emilia in the Italian region Emilia-Romagna, located about west of Bologna and about southwest of Reggio Emilia. It was a separate until 1 January 2016, when it was merged with Busana, Ligonchio and Ramiseto.

Collagna borders the Tuscan municipalities of Comano (MS), Fivizzano (MS) and the former municipality of Sillano (LU).

People

• Giovanni Lindo Ferretti (b. 1953), singer-songwriter, born in Cerreto Alpi

References