|Municipality||Nikaia-Agios Ioannis Rentis|
|o Municipal unit||6.649 km2 (2.567 sq mi)|
|Elevation||40 m (130 ft)|
|o Municipal unit||89,380|
|o Municipal unit density||13,000/km2 (35,000/sq mi)|
|Time zone||UTC+2 (EET)|
|o Summer (DST)||UTC+3 (EEST)|
Nikaia (Greek: , Níkaia), known before 1940 as Kokkinia (, Kokkiniá), is a suburb in the southwestern part of the Greater Piraeus municipalities, Greece. Since the 2011 local government reform it is part of the municipality Nikaia-Agios Ioannis Rentis, of which it is the seat and a municipal unit.
Nikaia is located 2.5 km (1.6 mi) north of Piraeus, and 7 km (4 mi) west of central Athens. The municipal unit has an area of 6.649 km2. The main streets are Gregori Lambraki Street and Petrou Ralli Street.
Nikaia, like many other places around Greece, owes its population eruption to Greek refugees who left the Asia Minor coast after the 1922 war ended. It was part of the municipality of Piraeus until 1933, when it became a separate municipality, then still under the name Nea Kokkinia. It was renamed to Nikaia in 1940.
The 8th International Tournament of Nikaia, a chess tournament, took place between August 19 and 27, 2000. The Greek Weightlifting Grand Prix took place in Nikaia on December 9 and 10, 2003.
Nikaia has four sport clubs with important history. These are Proodeftiki with a great successful history in the football, Ionikos Nikaias with successful departments in the football (Ionikos Nikaias F.C.) and basketball (Ionikos Nikaias B.C.), A.E. Nikaias and Aris Nikaias.
|Sport clubs based in Nikaia|
|Proodeftiki||1927||Football, Basketball||Long-time presence in Superleague|
|Chalkidona F.C.||1930||Football||Earlier presence in Superleague|
|Ionikos Nikaias||1965||Football, Basketball, Water Polo||Long-time presence in Superleague, earlier presence in A1 Basketball|
|Aris Nikaias||1973 (refounded)||Basketball, Handball, Water Polo||Panhellenic titles in women handball|
|A.E. Nikaias||1974 (refounded)||Football , Volleyball||One Greek cup in volleyball|