Kostas Sloukas

Konstantinos "Kostas" Sloukas (Greek: Κωνσταντίνος Σλούκας; born January 15, 1990) is a Greek professional basketball player and the team captain for Panathinaikos of the Greek Basketball League (GBL) and the EuroLeague. He is also a regular member of the senior Greek basketball national team. A left-handed, 1.90 m (6 ft 3 in) tall combo guard, Kostas Sloukas is one of the most decorated EuroLeague players of his generation.

Sloukas has played in eight EuroLeague Finals (2012, 2013, 2015, 2016, 2017, 2018, 2023 and 2024) winning the title on four occasions (2012, 2013, 2017 and 2024). He was a member of the All-EuroLeague First Team in 2019 and a member of the All-EuroLeague Second Team in 2022 and 2024.

After lifting the EuroLeague trophy in 2024 and earning Final Four MVP honors in the process, Sloukas became just the second player in history to win the competition with three different teams, alongside Sarunas Jasikevicius.

Sloukas has been a regular member of the Greek national team since 2011, after winning five medals at the youth level. In 2025, he helped Greece capture the bronze medal at EuroBasket 2025.

Sloukas began playing club basketball as a youth, with Megas Alexandros Thessaloniki. Then he moved to the Mandoulides School youth teams, in Thessaloniki, Greece.

Sloukas joined the Greek Basket League power Olympiacos Piraeus, in the year 2008. He then spent the 2008–09 and 2009–10 seasons with the club. He made his debut in Greece's top-tier level Basket League, during the 2008–09 season, and made his debut in Europe's top-tier level, the EuroLeague, during the 2009–10 season. He also won the Greek Cup title with Olympiacos, in 2010.

Sloukas was loaned by Olympiacos, to the Greek club Aris Thessaloniki, in 2010. While a member of Aris, he was named the Greek Basket League's Best Young Player of the Greek Basket League 2010–11 season. With Aris, he also played in Europe's second-tier level competition, the EuroCup, during the same season.

After spending the 2010–11 season with Aris, on loan from Olympiacos, Sloukas returned to Olympiacos for the 2011–12 season. With Olympiacos, he went on to win both the 2012 Greek League championship, and the 2012 EuroLeague championship. He then signed a 3-year contract extension with Olympiacos, in June 2012.