Charles-Joseph Voisin (1802–1872) was a Belgian Catholic clergyman and art historian.
Voisin was born in Frasnes-lez-Buissenal on 5 December 1802.
He was ordained priest in 1825 and served in a number of different parishes until 1837, when he was appointed episcopal archivist.
He played an important role in the restoration of Tournai Cathedral in the 1840s, and subsequently in the restoration of other medieval churches in the diocese.
[2] He died on 5 June 1872 and was buried in a crypt in Willemeau (now a subdivision of Tournai) that was unearthed in 2015 during public works next to the church.