Modesto Gavazzi, O.F.M. Conv. (died 1657) was a Roman Catholic prelate who served as Archbishop of Chieti (1657).

Modesto Gavazzi was ordained a priest in the Order of Friars Minor Conventual.^[1][2] On 19 Feb 1657, he was appointed during the papacy of Pope Alexander VII as Archbishop of Chieti.^[1][2] He died soon after on 6 Mar 1657,^[1][2] a claim which is contradicted by the grant of the pallium to him on 12 March 1657.^[3]

Modesto Gavazzi was scholastic philosopher and a close friend and colleague of the better-known Scotists Bonaventura Belluto (1600–76) and Bartholomew Mastrius.^{[citation needed]}