Olympiacos vs. Seattle Sounders: Titles in the Last 10 Years

Who won the most tournaments in the last 10 years, Seattle Sounders from USA or Olympiacos from Greece? Here you can compare, side by side, the international and domestic trophies won by both teams between 2015 and 2025, with a summary of titles won and details of achievements year by year.

At international level in the last 10 years—between 2015 and 2025—Seattle Sounders won 1 title more than Olympiacos, 2 against 1.

When you consider domestic first division tournaments and cups during the same period, Olympiacos surpasses Seattle Sounders in titles won 10 to 2.

Considering the entire list of titles won over the last 10 years, including both international and domestic titles and without taking into account the relevance of each tournament, Olympiacos wins the comparison with Seattle Sounders, 11 to 4.

Summary of Titles Won in the Last 10 Years:
Titles between 2015 and the present:
Olympiacos	Seattle Sounders
International: 1 UEFA Conference League: 2023-24	International: 2 Concacaf Champions Cup: 2022 Leagues Cup: 2025
Domestic: 10 Greek League: 2014-15, 2015-16, 2016-17, 2019-20, 2020-21, 2021-22, 2024-25 Greek Cup: 2014-15, 2019-20, 2024-25	Domestic: 2 USA League: 2016, 2019

Details of Titles Year by Year:
Olympiacos	Seattle Sounders
2025
-	International: 1 2025 Leagues Cup
Domestic: 2 2024-25 Greek League 2024-25 Greek Cup	-
2024
International: 1 2023-24 UEFA Conference League	-
2023
-	-
2022
-	International: 1 2022 Concacaf Champions Cup
Domestic: 1 2021-22 Greek League	-
2021
Domestic: 1 2020-21 Greek League	-
2020
Domestic: 2 2019-20 Greek League 2019-20 Greek Cup	-

Olympiacos	Seattle Sounders
2019
-	Domestic: 1 2019 USA League
2018
-	-
2017
Domestic: 1 2016-17 Greek League	-
2016
Domestic: 1 2015-16 Greek League	Domestic: 1 2016 USA League
2015
Domestic: 2 2014-15 Greek League 2014-15 Greek Cup	-