Jean-Baptiste Verchère de Reffye (30 July 1821 – 6 December 1880) was a French artillery general of the 19th century, and superintendent of the works at Meudon.^[1] He was a former ordnance officer for Napoleon III. He also established the gun manufacture in Tarbes.

De Reffye developed in 1866 the Reffye mitrailleuse (named "Canon à balles"), one of the best early machine guns,^[2] which was used during the Franco-Prussian War of 1870.^[3] It was based on the earlier Belgian Montigny mitrailleuse of 1863.

Jean-Baptiste Verchère de Reffye took a key role in introducing rifled breech loading cannons, a marked improvement over the previous La Hitte system which had been in place since 1858. The La Hitte system used rifled weapons, but they were muzzle-loading, which had the advantage of structural strength, but the disadvantage of slowness in loading.

In 1870, de Reffye developed the Reffye 85mm cannon, an 85 mm (3.35-inch) rifled breech-loading cannon, equipped with a breech screw, initially made of bronze. The cannon used shell cartridges for ammunition.^[4]

De Reffye also developed the Reffye 75mm cannon in 1873. His cannons would be soon superseded by the Lahitolle 95mm cannon and especially the De Bange 90mm cannon.