Kleitoria () is a village and a municipal unit in Achaea, Peloponnese, Greece. It was also the new name of the former municipality Lefkasio, of which it was the seat, between 2008 and 2011. Since the 2011 local government reform it is part of the municipality Kalavryta, and became a municipal unit of this municipality. The municipal unit has an area of 253.221 km<sup>2</sup>. The site of the ancient city of Cleitor is nearby.
The municipal unit Kleitoria is subdivided into the following communities (constituent villages in brackets):