Viidaav, a planet populated by the Viidaav species, existed within the Bryx sector of the Mid Rim.
During the initial period of the Clone Wars, Viidaav served as a Separatist base of operations. However, Republic scouts eventually discovered its location.
In 19 BBY, Count Dooku and General Grievous permitted the Republic's clone troopers to land on Viidaav, all as part of an elaborate scheme.