Thodoris Vlachos

Theodoros "Thodoris" Vlachos (Θοδωρής Βλάχος; born 9 July 1969, in Volos) is a retired Greek water polo player and the current coach of the Greece men's national water polo team.

As a player, Vlachos played for Olympiacos from 1989 to 1998, winning numerous titles. He was also a member of the Greece men's national water polo team. After his retirement, he became assistant coach of Olympiacos under coaches Dragan Matutinović, Zoltán Kásás and Veselin Đuho. He became Olympiacos head coach in 2011, following a successful stint as head coach in Palaio Faliro. Under his guidance, Olympiacos won the 2017–18 LEN Champions League in Genoa, after a 9–7 win against home team Pro Recco in the final and completed a Triple Crown, winning the season's all available titles. Besides the LEN Champions League and the Triple Crown, he has also coached Olympiacos to 10 consecutive Greek League titles (2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022) 9 Greek Cups (2013, 2014, 2015, 2016, 2018, 2019, 2020, 2021, 2022) and 7 domestic Doubles.

In 2014, he became head coach of Greece men's national water polo team, whom he led to the bronze medal at the 2015 World Aquatics Championships in Kazan and the bronze medal at the 2016 World League in Huizhou.

Club
Olympiacos
 * LEN Champions League: 2017–18 ;runners-up: 2015–16, 2018–19
 * Greek Championship: 2012–13, 2013–14, 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2019–20, 2020–21, 2021–22
 * Greek Cup: 2012–13, 2013–14, 2014–15, 2015–16, 2017–18, 2018–19, 2019–20, 2020–21, 2021–22
 * Greek Super Cup: 2018, 2019, 2020

National team

 * Silver Medal in 2020 Olympic Games, Tokyo
 * Silver Medal in 2023 World Championship, Fukuoka
 * Silver Medal in 2018 Mediterranean Games, Tarragona
 * Bronze Medal in 2015 World Championship, Kazan
 * Bronze Medal in 2016 World League, Huizhou
 * Bronze Medal in 2020 World League, Tbilisi
 * 4th place in 2016 European Championship, Belgrade
 * 4th place in 2017 World Championship, Budapest
 * 6th place in 2016 Olympic Games, Rio

Awards

 * PSAT Awards Coach of the Year: 2021