The Kortenaer class was a class of frigates of the Royal Netherlands Navy. They were built to be a general purpose frigate; able to combat all surface, submarine and aircraft targets. Like some of the other frigates of the 1970s and 1980s, they featured a COGOG (combined gas or gas) propulsion system. Ten were built by de Schelde in Vlissingen and two by Wilton-Fijenoord in Schiedam between 1978 and 1982. Only 10 served with the Royal Netherlands Navy: two were sold to Greece while still under construction and replaced by two Jacob van Heemskerck-class frigates which are basically an anti-air warfare (AAW) variant of the Kortenaer class. The Greek frigates were renamed the Elli-class.
Eight similar ships were built by Germany during the same period as the Bremen-class.