Jacques-Bonne Gigault de Bellefonds (1698–1746) was a French prelate who was Archbishop of Arles from 1741 to 1746.

Pope Clement XII confirmed this appointment on 27 February 1736 and Cardinal Melchior de Polignac, Archbishop of Auch, consecrated de Bellefonds as a bishop on 25 March 1736.

He died in Paris of smallpox only months after becoming Archbishop, on 20 July 1746.

His career was marked by his opposition to Jansenism within the Catholic Church in France.

Shortly before his death from smallpox, he had denounced Denis Diderot's Pensées philosophiques.