(former Ptolemaida-Lignitorikhi) is a football club based in Ptolemaida, Greece.

Eordaikos was created in 1978 from the merge of two Ptolemaida teams, the team of Aris Ptolemaidas with former presence in the second division and Ptolemaios, playing in the second and third division of the Greek tier and having successful runs in the Greek cup.

Finally, in 2007, the administrative council decided to rename the Club to T.A.P.

The team colours are green and yellow, something unique in Greece.

Eordaikos' success opened a new chapter in the football history of the prefecture Kozani.