Odontolabis castelnaudi is a beetle of the family Lucanidae.

[1][2] It is known from Borneo (Sabah, Malaysia) and Sumatra (Indonesia).

[1] Odontolabis castelnaudi can grow to 90 mm (3.5 in) in length.

It is mostly black but has yellow wings sheaths.

This stag beetle article is a stub.