Panionios

The club was founded in 1890 by a part of the sizeable Greek population of İzmir (Greek: Σμύρνη), under the name of "Orpheus Music and Sports Club". In 1893, some Orpheus members keen on sports formed a separate organization, the "Gymnasion Club", and started holding yearly sports competitions. In 1898, Orpheus and Gymnasion merged again to form Panionios GSS. Members of Panionios represented Greece in all international track and field games until these developed in the modern Olympic Games.

After the Greek military defeat in 1922 the club was forced to transfer, firstly to Athens and later, to the Athenian suburb of New Smyrna, where much of the population of Smyrna re-settled. The club always had a strong tradition of cultivating all major sports; it was the first Greek club to establish a track and field division for women, in 1925. Another major example of the club's contribution to Greek sports rests in the fact that it was Panionios that introduced Basketball and Volleyball in Greek sports society.

With the gradual transformation of men's football and basketball into professional sports, Panionios FC and Panionios BC became privately owned clubs operating under the auspices of the traditional "amateur sports" Panionios GSS. To date, Panionios remains the only sports club in Greece that was awarded the Golden Cross from the Athens Academy as a recognition of the club's rich and continuous enrichment of Greek sports.

Panionios has spent nearly its entire history in the Greek First Division (now called 'Super League'), having missed out from competing in Greek football's top division only twice in its more than 100-year history.^[] Within this, Panionios rose quite often to high levels, with top league achievement of 2nd place in 1971, losing the title to AEK Athens. 8 years later on 9 June 1979, Panionios took revenge on AEK Athens in the final of the Greek Cup and won the title for the first time in its history after winning 3–1.

Panionios produced all three major Greek strikers of the 1980s, namely Nikos Anastopoulos (later of Olympiacos), Thomas Mavros (later of AEK Athens), and Dimitris Saravakos (later of Panathinaikos). Other notable players coming out of the club in the 1990s included Nikos Tsiantakis (later of Olympiacos) and Takis Fyssas, later of Panathinaikos, Benfica and member of Greece national football team. Within the 2000s another five Greece national football team players came out from the club, namely Alexandros Tziolis, Evangelos Mantzios, Nikos Spiropoulos, Grigoris Makos and Giannis Maniatis.

The club faced financial difficulties which triggered the transfer of the ownership to the municipality of Nea Smyrni in 1992. Those difficulties remained throughout the 1990s, forcing the team's league performance to drop. Yet, it remained in a high level and won the Greek Football Cup competition in 1998 and participated successfully in the UEFA Cup Winners Cup the year after, reaching the quarter-finals. In December 2001 large parts of the club's shares moved away from the Municipality back to private hands, where working around bankruptcy legislation the club was renamed to Neos Panionios FC, to avoid the threat of relegation from the first division.

In 2004, shipowner Constantinos Tsakiris was elected president of the "amateur sports" Panionios GSS. Panionios won the women's Basketball Championship in 2006, the club's first in a team sport, and the women's volleyball team advanced to the first division. In 2006, Tsakiris acquired 85% of Neos Panionios FC stock and started restructuring the team from scratch. He changed the name of the club back to the original Panionios GSS FC and hired German coach Ewald Lienen who, during his first year created a team that made it to the top 5 of the Greek Super League and on to the UEFA Cup. Tsakiris has also unveiled an ambitious plan to have the aging football ground and athletics track demolished, and build a modern multi-sport arena in its place. Apart from a 12,000 capacity football stadium, the proposed complex would include facilities for basketball, volleyball, aquatic sports, track & field, boxing, gymnastics, wrestling and more.

On the summer transfer window of 2008, the club signed Uruguay national team members Álvaro Recoba and Fabián Estoyanoff, but shortly after Lienen resigned by mutual consent on 11 November 2008, reason being disagreement with the Panionios' board. On 12 November 2008 Greek coach Takis Lemonis was hired and resigned on 3 December 2008 after the refuse of Panionios' board to accept Lemonis' request to dismiss three members of Panionio's coaching and management staff. Assistant coach Joti Stamatopoulos lead the club until the end of the season. He was replaced by Belgian manager Emilio Ferrera.

Under the Tsakiris presidency, the club built its own training facility just outside Athens in the region of Koropi. The training ground is operating since 2008 but was fully completed in 2009.