Universal vortex generators for wind turbine rotor blades and methods of manufacturing same are disclosed. The vortex generator includes a base portion configured for attachment to at least one of a suction side surface or a pressure side surface of the rotor blade and at least one airflow modifying element extending from the base portion. In addition, the airflow modifying element includes one or more discontinuities configured therein so as to increase flexibility of the vortex generator.