Serbia and Montenegro competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. Previously known as the Federal Republic of Yugoslavia, this was the nation's third and last joint appearance at the Summer Olympics before Serbia and Montenegro became separated independent states in 2006. The Olympic Committee of Serbia and Montenegro sent a total of 85 athletes to the Games, 78 men and 7 women, to compete in 14 sports. Men's basketball, football, volleyball, and water polo were the only team-based sports in which Serbia and Montenegro had its representation at these Games. There was only a single competitor in road cycling, judo, tennis, and wrestling.
Water polo has been part of the Summer Olympics program since the second games, in 1900. A women's water polo tournament was introduced for the 2000 Summer Olympics. Hungary has been the most successful country in men's tournament, while the United States is the only team to win multiple times at the women's tournament since its introduction. Italy is the first and only country to win both the men's and women's water polo tournaments.
Montenegro competed as an independent nation for the first time at the Olympic Games at the 2008 Summer Olympics in Beijing, People's Republic of China. Montenegro was the youngest nation to participate in the 2008 Summer Olympics. Athletes from Montenegro participated in three different events. In individual events, the new nation had representatives in boxing and shooting. Boxer Milorad Gajović represented his country in the heavyweight division, while Nikola Šaranović competed in 10 m air pistol and 50 m pistol precision shooting events. In team competition, Montenegro competed in water polo. The Montenegro national water polo team won the 2007 European Water Polo Olympic Qualification Tournament to qualify for the Olympic games.
The Netherlands competed at the 2008 Summer Olympics in Beijing, People's Republic of China. This was announced in an official statement on the NOC*NSF website. In the statement they named the Olympic Games and the Paralympic Games as a highlight in sports to which a lot of sportspeople, coaches and the Dutch sports fans would look forward. The Netherlands aimed for a top 10 nations ranking in the Olympics as well as a top 25 ranking in the Paralympics; they ended up ranking 12th at the Games.
The 2007 Women's European Water Polo Olympic Qualification Tournament for the Games of the XXIX Olympiad in Beijing 2008 was held in Kirishi, Russia from August 19 to August 26, 2007. The Netherlands defeated Russia in the final and so earned a berth for the 2008 Summer Olympics Water Polo Competition.
The 2008 Men's Olympic Water Polo Qualifying Tournament was a tournament to decide the remaining four competing teams, out of twelve, to attend the 2008 Summer Olympics in Beijing, PR China. Eight teams were already qualified, including China as the host country. The tournament was held at the "Ioan Alexandrescu" Pool, newly built in Oradea, Romania from March 2 to March 9, 2008s.
Greece competed at the 2008 Summer Olympics in Beijing, People's Republic of China. They were represented by the Hellenic Olympic Committee, which announced on July 28, 2008, the 156 Greek athletes to compete in Beijing, composed of 84 men and 72 women, the largest Greek Olympic team ever excluding the home team of the Athens 2004 Olympics. Greece took part in archery, athletics, basketball, boxing, canoeing, cycling, diving, gymnastics, judo, rowing, sailing, shooting, swimming, synchronized swimming, table tennis, taekwondo, tennis, triathlon, beach volleyball, water polo, weightlifting and wrestling.
Hungary competed at the 2008 Summer Olympics in Beijing, China. The country sent 131 individual competitors plus the men's and women's water polo teams and the women's handball team for a total of 171 athletes taking part in the 2008 Summer Olympics. Hungary's gold medal count of 3 was the lowest in the nation's Summer Olympic history since the 1924 Paris Summer Olympics. Its total medal count of 10 was the lowest since the 1928 Summer Olympics in Amsterdam.
Mlađan Janović is a Montenegrin water polo player. He currently plays for AN Brescia and he is a long-standing member of the Montenegrin national water polo team. He was part of the Montenegro national team that was crowned European Champion at the 2008 European Championship in Málaga.
The Slovakia men's national water polo team is the representative for Slovakia in international men's water polo. The governing body is from 2017 Slovak Swimming Federation. It was established in 1993 as the successor state of the Czechoslovakia, so all its results fully belong to it.
The 2012 Men's Water Polo Olympic Qualification Tournament was held at the Kinsman Sports Centre in Edmonton, Alberta, Canada, from 1 to 8 April 2012.
Serbia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. It was the nation's fourth appearance at the Summer Olympics as an independent country. The Olympic Committee of Serbia confirmed a roster of 103 athletes, 58 men and 45 women, to compete across 14 sports at the Games.
Montenegro competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's third consecutive appearance at the Summer Olympics since it gained independence from Serbia in 2006.
This article presents the national team appearances in the men's Olympic water polo tournament since the inaugural official edition in 1900.
Montenegro competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's fourth consecutive appearance at the Summer Olympics since gaining independence in 2006.
This article lists various water polo records and statistics in relation to the Montenegro men's national water polo team at the Summer Olympics.
This article lists various water polo records and statistics in relation to the Serbia men's national water polo team at the Summer Olympics.
This article lists various water polo records and statistics in relation to the Yugoslavia men's national water polo team at the Summer Olympics.
This article lists various water polo records and statistics in relation to the FR Yugoslavia men's national water polo team and the Serbia and Montenegro men's national water polo team at the Summer Olympics.
Romania 
Russia 
Germany 
North Macedonia 
Slovakia 
France 
Montenegro 
Greece 
Italy 
Slovenia 
Netherlands