Argentina 3x3 U23, also known as the Argentine Under-23 3x3 Basketball Team, represents the nation of the same name in 3x3 competitions of the International Basketball Association (FIBA), as well as in the Pan American Games. The team is governed by the Argentine Basketball Confederation (CABB).
Argentina has a rich history in traditional 11-a-side and 5-a-side (Olympic style) men's and women's hoops, but is still relatively young in the 3x3 scene. It made its international 3x3 competition debuts at the continental level when the 2018 South American Games, which also served as the first U23 South American Championships, took place in Cochabamb, Bolivia. To prepare for the South American Games and FIBA 3x3 U23 World Cup, the Argentine 3x3 Under-23 Select Team was formed, with the roster filled by U23 players from the U23 Argentine League.
At the inaugural U23 World Cup in Bucharest, Romania, they won the silver medals after coming up short against Russia in the finals. But the boys and coaches had made history for their country, and the world made note of this South American team. FIBA also took note, and at the next edition of the U23 World Cup in Lanzhou, China, FIBA gave two berths to South America, and the defending silver medalist Argentineans were one of the teams to represent the region. They finished the 2022 World Cup with an 0-5 record, but this experience would help them in future competitions.
Then, in 2022, the CABB decided to turn the team into a permanent program, with the idea of the team being a feeder into the senior Argentine 3x3 National Team Program. In October of the same year, under the new format, the team competed at the 2022 South American U23 Championships in Cuenca, Ecuador. In a form of revenge, they took down the host nation in the finals to claim the gold medals, thus qualifying for their third U23 World Cup.
In 2023, the World Cup was held in Debrecen, Hungary, and it was clear the team was not prepared to be a participant only. After a bumpy start, the team grew into the event and finished the group phase with a 4-1 record, and in the quarterfinals, they took down the top team from Africa, Mali. Then, in the semi-finals, after erasing a six-point deficit, the boys from the Southern Cone outscored world number one, France, 21-18 to advance to the finals. However, the Under-23 World Cup finals would not be easy as they took on the host nation, Hungary, in a game that was played in front of more than 20,000 fans. Hungary would take the gold, but the silver-medal finish of the Argentine 3x3 U23 Team was a huge success as they had shown improvement at each edition of the World Cup, and they were now one of the top teams in the world.
Currently, the Argentine 3x3 U23 National Team is one of the most successful 3x3 teams in the world in its category, having won a silver and a gold at the South American U23 Championships and a silver at the U23 World Cup. They are also the only team to reach the podium at three editions of the U23 World Cup.
Notable players include Juan Francisco Fernández, Tomás Chahab, Juan Ignacio Respaud, and Luciano Massarelli. As of 2023, the team is coached by Sebastián Porta.