Giovanni Battista Desio (1628–1677) was a Roman Catholic prelate who served as Bishop of Venosa (1674–1677).
[2] On 28 April 1628, he was appointed Bishop of Venosa by Pope Urban VIII.
On 16 May 1674, he was consecrated bishop by Giulio Spinola, Bishop of Nepi e Sutri, with Giacomo de Angelis, formerly Archbishop of Urbino, and Pier Antonio Capobianco, formerly Bishop of Lacedonia, serving as co-consecrators.
He served as Bishop of Venosa until his death in August 1677.
This article about a 17th-century Italian Catholic bishop or archbishop is a stub.