The 2005–06 Gamma Ethniki was the 23rd season since the official establishment of the third tier of Greek football in 1983.

Asteras Tripolis Asteras Tripolis Football Club (), currently known as Asteras AKTOR for sponsorship reasons, commonly referred to as Asteras, is a Greek professional football club based in the city of Tripoli in Arcadia, Peloponnese, Greece. Asteras Tripolis ...

and Agrotikos Asteras were crowned champions in ''Southern'' and ''Northern'' Group respectively, thus winning promotion to

Beta Ethniki The Football League () was the second highest professional football league in Greece since its inception in 1962 as ''Beta Ethniki'' and until 2019. It then served as a third tier after the creation of the Super League 2 as the new second tier ...

. Ethnikos Piraeus,

Messiniakos Founded in 1888, Messiniakos Gymnastic Club () is one of the oldest athletic club in Greece with Panagiotis Benakis its first president. Messiniakos' traditional colours are green and white and in 1924 adopted as symbol a platanus foil. Messiniak ...

PAS Giannina PAS Giannina Football Club (), or with its full name Panipirotikós Athlitikós Síllogos Giánnina (, ''Panepirotic Athletic Club Giannina'') is a Greek professional Association football, football club based in the city of Ioannina, the capita ...

and Panthrakikos also won promotion due to expansion of

from 16 to 18 teams.

Keratsini Keratsini () is a suburban town in the western part of the Piraeus regional unit, which in turn is a part of the Athens Urban Area. Since the 2011 local government reform it is part of the municipality Keratsini-Drapetsona, of which it is the s ...

, Ionia 2000 Chania, Achaiki,

Kozani Kozani (, ) is a town in northern Greece, capital of Kozani (regional unit), Kozani regional unit and of Western Macedonia. It is located in the western part of Macedonia (Greece), Macedonia, in the northern part of the Aliakmonas, Aliakmonas riv ...

and

Ptolemaida Ptolemaida (, Katharevousa: Πτολεμαΐς, ''Ptolemaïs'') is a town and a former municipality in Kozani regional unit, Western Macedonia, Greece. Since the 2011 local government reform it is part of the municipality Eordaia, of which it i ...

were relegated to

Delta Ethniki Delta Ethniki () was the fourth level of Greek football championship. 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, ...

Southern Group

League table

Results

Northern Group

League table

Results

References

{{DEFAULTSORT:2005-06 Gamma Ethniki Third level Greek football league seasons 3

Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...