Greek National Road 89 is a road in East Attica, Greece. It connects Gerakas with Sounio, via Koropi and Lavrio. Between Gerakas and Koropi it has lost importance after the opening of the A6 motorway. There are plans to upgrade the section between Koropi and Lavrio to motorway standards, by constructing junctions to replace the traffic lights and generally upgrading the road. This new road may carry the designation A61.[1]