Delta Ethniki

Delta Ethniki
Organising body	Hellenic Football Federation
Founded	1982
First season	Erasitexniki Ethniki Katigoria, Greek: Ερασιτεχνική Εθνική Κατηγορία, lit. 'Amateur National Division' (1982–83); Delta Ethniki Katigoria, Greek: Δ΄ Εθνική Κατηγορία, lit. 'Fourth National Division' (1987–88);
Folded	2013
Country	Greece
Confederation	UEFA
Number of clubs	107 (2012–13)
Level on pyramid	4
Promotion to	Gamma Ethniki
Relegation to	Football Clubs Associations Championships
Domestic cup	Greece Amateurs Cup
Last champions	Aris Akropotamos (Group 1); Iraklis Ampelokipi (Group 2); Kozani (Group 3); Lamia (Group 4); Mesologgi (Group 5); Panopoulo (Group 6); Ermionida (Group 7); Egaleo (Group 8); Ionikos (Group 9); Atsalenios (Group 10) ; (2012–13)

The Delta Ethniki Katigoria (Greek: Δ΄ Εθνική Κατηγορία, lit. 'Fourth National Division') was the fourth-tier men's association football league in Greece. During the period of its existence, it was the lowest national division of the Greek championship. It was founded in the 1982–83 season and abolished in the 2012–13 season, as it was merged with the third division (Football League 2). Its history therefore spans 31 years.

Many historical clubs of first division (Super League) have played in Delta Ethniki, such as Iraklis Thessaloniki (2011–12 season), Ethnikos Piraeus, Apollon Smyrnis and Atromitos. The clubs of Delta Ethniki were divided in groups on the basis of geographical criteria. The groups usually comprised 10 teams, though this number varied between 4 and 12 over the years.