Nikaia or Nikea (Greek: Νίκαια) is a suburb in the west southwestern part of Athens, Greece. The mountaintop of the southern part of Aigaleo lies to the north. It is also located SE of Eleusis and GR-9, SW and W of Kifissou Avenue (GR-1/E75, W of Thivon Avenue, about 8 km WSW of Athens, WNW of Poseidonos Avenue and Syngrou Avenue and about 4 km N of downtown Piraeus. The city has main streets including Gregori Lambraki Street and Petrou Ralli Street that is divided into two way roads which is also linked. The area was made up of farmlands. Mixed farming was common. Urban development replaced much of the farmlands between the 1930s and the 1950s. The area, like many others around Greece, owes its population eruption to Greek refugees who left the Asia Minor coast after the 1922 war ended with the Turkish army burning Smyrna to the ground. Today, most of the municipality is urbanized or residential. The rocky landscape of Aigaleo with a few bushes lies to the north. The mountaintop is to the northeast and the valley is to the northwest. The industrial area lies to the southwest with most of the buildings, as the port of Piraeus. The area which was used for mining in the 1960s transformed the area into a park. The area is made up of hills with exception of the northwest where the Aegaleo ranges are located.
The 8th International Tournament of Nikea, a chess tournament, took place between August 19 and 27, 2000. The Greek Weightlifting Grand Prix took place in Nikaia between December 9 and 10, 2003.
Nikaia has schools, lyceums, gymnasia, banks, a police station, a post office, a hospital named Agios Panteleimonas also Nikea-Piraeus General Hospital a soccer team, a volleyball team named Nikaia Piraeus and squares (plateies).
