Metamorfosi (; before 1957: Koukouvaounes () is a suburb in the northern part of the Athens agglomeration, Greece, and a municipality of the Attica region.
Characteristics
Metamorfosi is a quiet area in the northern suburbs of Athens. It is located south of Kifissia and is 12 kilometers from the center of Athens. It covers an area of 5.5 square kilometers. Initially, it was administratively under the Municipality of Athens, until 1933, when the community of Koukouvaounes was established. The community was renamed to Metamorfosi in 1957, || 2,807
|-
| 1961 || 7,952
|-
| 1971 || 16,880
|-
| 1981 || 17,840
|-
| 1991 || 21,411
|-
| 2001