Volleyball

Olympiacos is by far the most successful club in Greece, having won a record 32 Greek Volley Leagues, a record 17 Greek Cups, a record 6 League Cups and 2 Super Cups. It also holds the record of the most consecutive League wins with 8 (1987-1994) and remains the only club that managed to win all three domestic titles in a season (2013).

Olympiacos is a traditional European powerhouse and the only Greek team that have won a European title or participated in FIVB Club World Championship. In 2018, Thrylos became the first volleyball club to have men and women playing simultaneously in European finals.

Olympiacos is considered one of the six most successful clubs in CEV Cup historically, having won the competition twice (1996, 2005) while they were runners-up in 1997 and 1998 and made it to the semifinals in 2019. The club also has 7 participations in CEV Champions League Final Four, making it to the finals twice, and two participations in CEV Challenge Cup finals, winning the trophy in 2023.