Tomalak's Warbird was a D'deridex-class Romulan Warbird commanded by Commander Tomalak during the mid-2360s.
In 2366, the Warbird was ordered to violate the Romulan Neutral Zone to rescue the crew of the Romulan scout ship Pi, that had crash-landed on Galorndon Core. Discovered by the USS Enterprise-D, the Warbird stayed in orbit until the rescue was complete. (TNG: "The Enemy")
Later that year, Tomalak may have been in command of the same Warbird during events surrounding Alidar Jarok's defection to the Federation. (TNG: "The Defector")
In Q's anti-time present, Tomalak commanded the Warbird IRW Terix. (TNG: "All Good Things...")