(17 November 1809 – 11 December 1872) was a French Roman Catholic missionary and bishop who served as Vicar Apostolic of Eastern Siam from 1864 to 1872.

[1][2] In 1839, he began his missionary work in the parish of Notre-Dame du Rosaire in Bangkok which was soon extended to the surrounding region.

On his return to Bangkok, he resumed his post at the Notre-Dame du Rosaire parish, and worked as a travelling missionary whilst preaching against opium use.

On 9 September 1864, Dupond succeeded Pallegoix as Apostolic Vicar of Eastern Siam, and at the same time was appointed Titular Bishop of Azotus.

In 1870, he participated in the First Vatican Council in Rome, and took part in meetings for the revision of the regulations of the Paris Foreign Missions Society.