The RIS Vo was a Theta-class Romulan scout starship in service of the Romulan Star Empire's Star Navy in the 24th century.

In 2366, the Vo was stolen by Admiral Alidar Jarok and used to flee to Federation space. After being rescued by the crew of the USS Enterprise-D, Admiral Jarok scuttled the ship to prevent it from being captured.

In 2266, the Praetor's flagship was involved in the Neutral Zone Incursion with the Federation. The ship attacked several border outposts, destroying them utterly. The USS Enterprise responded to the alert and engaged in a tense game of cat-and-mouse with the intruder for more than ten hours, before the Bird-of-Prey was destroyed. Named after the Gal Gath'thong mountain range on Romulus.