The IRW Makluan was a Romulan warbird that was in service in the 24th century.
In 2376, the Makluan investigated a dead zone outside the Caltiskan star system. (TNG - Maximum Warp novel: Dead Zone)
Later in 2376, the Romulan military stationed the Makluan at Deep Space 9 following an attack on Deep Space 9 by Kitana'klan and other rogue Jem'Hadar. The Makluan was later recalled during the Gateways Crisis. (DS9 - Gateways novel: Demons of Air and Darkness)