1998–99 Alpha Ethniki
The 1998–99 Alpha Ethniki was the 63rd season of the highest football league of Greece. The season began on 22 August 1998 and ended on 30 May 1999. Olympiacos won their third consecutive and 28th Greek title.
Teams
| Promoted from 1997–98 Beta Ethniki | Relegated from 1997–98 Alpha Ethniki |
| Aris Panelefsiniakos Ethnikos Asteras | Panachaiki Kalamata Athinaikos |
Stadiums and personnel
| Team | Manager1 | Location | Stadium | |||||||||
| AEK Athens |  League tableTop scorers
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