In Puerto Rico the practice of water polo has historically been considered a niche sport, putting it outside the scope of traditional competition and mostly serving as a recreational activity. As such, it wasn't officially sanctioned until 1965 and was not given a separate federation, instead being absorbed by the Federación Puertorriqueña de Natación (FPN), which holds general jurisdiction over most water sports. Despite this, the Puerto Rico men's national water polo team won its first international medal in the 1938 Central American and Caribbean Games, 29 years before recording its first win and while the practice of the sport was inexistent in the archipelago. Due to this, the accolade was met with cynicism and used as the recurrent subject of parody during decades, until an organized program emerged during the second half of the 20th Century.

Seen as a hobby, the sport had little competitive practice and combined with sparse international representation, the Puerto Rico water polo national team remained a winless regional medalist for decades. A 10-8 win over Curaçao on December 27, 1967 as part of a Triangular Tournament held at the Escambrón Olympic pool represented the program's first international win. After finishing second with a record of 2-2 (both losses to Jamaica) in this event, the federation invited a team from Brazil to play against the combine. By the 1990s the program was consistently winning medals in regional events, continuing this performance into the 2010s. During the 2020s, the men's water polo team has been the back-to-back Central American and Caribbean Games champions, while the women's team has continued to secure podiums at this event.

History Beginnings, first international medal (1938–1964) Water polo was introduced to Puerto Rico following the Spanish-American War and by 1927, social events were featuring competitions of the sport. An international selection first took the stage at the tournament of the 1938 Central American and Caribbean Games. This was the very first time a team was organized, with the press emphasizing that the practice of the sport was completely unknown in the island prior to this point. The participation was in part possible due to the government's interest in participating in the most sports possible during the event. Prior to the Panama games, Miguel Ángel Rodríguez approached Pablo Albanense to enter the water polo tournament, which at the moment was expected to be a four team affair also involving a Mexican team that later withdrew. He joined Guigo Otero Suro, Salvador Torrós, Antonio del Valle, Héctor Cordero and George Johnson to form the lineup. Due to the sport being foreign to Puerto Rico at the time, none of the players had ever played a single game of water polo, receiving a last minute three-day crash course from an English-speaking coach. The participation in the sport led to arguments being made for including them in the curriculum of local schools. The team debuted with a loss before Panama, then considered amongst the strongest in the region and with whom they had been training and playing scrimmages at Fort Clayton. This was followed by a match against Jamaica, losing the game but eventually carrying the tournament's bronze medal. When the Medalla de Puerto Rico was created as an award for local athletes in 1940, the Puerto Rico Sports and Recreation Commission conditioned awarding it to the sport peniding the decision of Swimming Adviser Luis Saavedra, expressing reserves at the competitive level of the new program. In 1941, the Federación Deportiva del Norte began organizing water polo tournaments between civilian and military teams in the northern region of Puerto Rico. A water polo season was planned for June through August in a plan developed by the Sports and Recreation Commission in 1942. Years later, the results of the "improvised team" were still treated as sports trivia and a curious fact. In 1957, permits to build a water sports facility at hotel Laguna Condado were denied, halting the plans to expand the infrastructure available for the practice of the sport.

When Puerto Rico made its return to competitive water sports at the 1959 Central American and Caribbean Games, the press noted that in the decades since the last participating, water polo had been generally regarded as an ironic and comedic fact that the team had a medal for a sport that was still not practiced in the island. With this participation, it was one of fourteen teams sent to the event. However, no water polo team was organized for the 1959 Pan American Games. In 1959, the absence of infrastructure to practice water polo and the necessity of it for international competition was a topic of media coverage. Among the players that gained some coverage during this time was Rodrigo Otero, a multifaceted athlete and sports executive who was widely associated with a number of sports. The term "Liga de Water Polo Profesional" was also used as veiled criticism when the Puerto Rico Winter Baseball League (now known as Liga de Béisbol Profesional Roberto Clemente) played games under the rain. By the time that the 1962 Central American and Caribbean Games were organized, water polo remained an unpracticed sport in Puerto Rico and representation remained dormant. The lack of a culture for the sport was also mocked when a day's scheduled was suspended due to rain, despite being a water sport. This was reflected in the local journalism, with one instance regarding water polo as "insipid [and] more akin to a bath time pastime". As Puerto Rico prepared to host the 1966 Central American and Caribbean Games, organizing several sports including water polo became a priority for the organizing committee. Henry Brewerton was tasked with making sure that a delegation meeting Olympic standards was created in time for the event and an Olympic pool was constructed. On February 9, 1964, Cervecería Corona and the Circuito Superior de Béisbol Aficionado held a homage to the bronze medal winners. Federative organization (1965–1969) Harry E. Hauck was brought to Club Caribe Hilton to identify players and prepare a team in time for the regional event. On February 8, 1965, San Antonio de Abad faced Club Caribe Hilton in the first games officially sanctioned in Puerto Rico, with the later winning 14-13 and the losing a rematch 5-9 in a series organized at San Juan. More amateur teams were organized outside the Metropolitan Area and soon faced each others, with Atlético de Ponce defeated the Tritones de Condado 11-9 in September 1965. As the games approached, the Dorado Hilton and Country Club, Club Deportivo de Ponce and other clubs joined this tendency. Club Deportivo de Ponce hosted the first Triangular Water Polo Tournament, which Club Caribe Hilton won. Prior to the CACG, Hotel Condado offered free water polo lessons open to the public. The media perception and coverage began to change, passing to be labeled as "the idea sport for the [summer] season". The local teams participated in a preparatory tournament held at San Juan in February 1966. Puerto Rico competed at a Triangular Joust of Swimming and Waterpolo held at Jamaica. In April 1966, candidates to form the final lineup for the CACG were medically evaluated at San Juan. The final roster for the 1966 CACG was composed by Kenier Méndez, Freddy Martín, Alejandro Franco, Edwin Franco, Manuel Betancourt, Alex Hernández, Pirín Quilinchini, Antonio Vidal, Frank Roig, Juan Salicrup, Steve Benack, Pinto Nazario, Víctor Matos, Juan Curet, Jorge González and Willie Pinol. The team debuted with a 2-11 loss to Jamaica. Hauck was named head coach, with Tomás Garrido as assistant and Raúl Marcial technical director. The games were held at the Olympic pool built in Escambrón for this purpose, where the water polo national team also held several practice sessions. The team lost to Jamaica 2-11 and Barbados 2-12 and Colombia. At the CACG, water polo was one of the sports held concurrently to set an attendance record for a sports event, being estimated at 150,000. Later that year, the first men's amateur league was organized with Club Caribe Hilton emerging victorious over Condado Beach, Navy Swim Club and Mayagüez YMCA. In December 1966, Club Caribe Hilton won the first federative tournament in undefeated fashion, defeating Condado 13-8 in the final. In May 1967, the team hosted its own tournament. Puerto Rico requested to be the host of two youth tournaments.In the 1967 season of the league, Ponce and the Tritones de Condado joined, with the new teams displaying a solid level and the latter gathering an early lead. During that summer, the federation opted not to send a team to the Pan American Games. Instead, the sanctioning body opted to organize an international triangular tournament at the Escambrón pool. The national team opened with a 1-17 loss to Jamaica, but later recorded its first international win over Curaçao 10-1. In January 1968, the federation held its assembly and decided to emphasize the development of water polo throughout the year. In January 1968, the federation held its first Junior Olympics event, which included youth water polo overseen by a subcommittee presided by Goerge Benak. From that point afterwards, monthly U12 events were held under the sponsorship of organizations like the Phi Eta Mu fraternity, with Club Caribe Hilton defeating Caparra Country Club for the top spots in a tournament that also included Carolina Country Club and Caparra Country Club. In the senior category, Condado defeated Navy and Caribe Hilton finished third, with the federation stating that the intent was to organize the next national team. In the next stop, Caparra Country Club won the junior division over Navy while coached by former national team captain Alexander Franco. The senior division was won by Club Caribe Hilton, led by Renier Méndez who scored 17 goals. In April 1968, Puerto Rico entered a regional tournament held at Jamaica. In May, the team was invited to participate in a tournament held at Detroit, the federation sent a team to compete against various universities which they named Puerto Rico All-Stars. During the fall of 1968, Juan Bravo Jr. organized the first public school water polo tournament with six teams and 65 players participating. In December 1968, a team coached by Salavarría competed at the AAU Junior Nationals held at Fort Lauderdale and finished third, having defeated the host team 11-8, Coral Park 11-5 and Lower Moreland 11-6. The following week they fielded two teams and hosted the New York Athletic Club and Westpoint for an invitational. Sigma fraternity sponsored a team that won the U12 category of the national championships. At the 1969 Olympic Dinner, the COPUR gave a plaque to Jorge González. In April 1969, a senior team composed by Francisco Ramis, Guillermo Ramis, Miguel Rivera, Salvador Ramirez, Eddie Purcell, Emilio Betancourt, Ulises Díaz, Tony Ríos, Juan Curet, Rafael Ortiz and Gilberto Muñiz traveled to New York to compete at the United States Indoor Nationals.