Kifisia, also spelled Kifissia, is a large suburban municipality located in the northern part of the Athens urban area in Attica, Greece. The municipality encompasses the areas of Kifisia proper, Nea Erythraia, and Ekali.
The region is primarily accessed from central Athens via Kifisias Avenue. Historically, it has been recognized as one of the most affluent suburbs of Athens and has served as a residence for many major Greek political families.