Eurydactylodes vieillardi, sometimes known commonly as Bavay's gecko or Vieillard's chameleon gecko, is a species of lizard in the family Diplodactylidae.

The species is endemic to Grande Terre in New Caledonia.

[2] The specific name, vieillardi, is in honor of French botanist Eugène Vieillard.

[3] The preferred natural habitats of E. vieillardi are forest and shrubland, up to an altitude of 950 m (3,120 ft).

[1] E. vieillardi may attain a snout-to-vent length (SVL) of 6 cm (2.4 in).