Sebastián Agustín Gallegos Berriel (born 18 January 1992) is a Uruguayan footballer who plays for Chilean club Deportes La Serena as an attacking midfielder or winger.
After his good performances with the Uruguay national football team youth levels, many well known European clubs showed interest in Gallegos.
[2] On 9 September 2013, he was signed on a free transfer by Como Calcio 1907, where he played 10 games and scored 2 goals in the 2013–14 Serie C2 season.
In 2024, he signed with Deportes La Serena from Universidad de Concepción.
[3] Gallegos played the 2009 FIFA U-17 World Cup with Uruguay scoring 5 goals in 5 matches and became the championship's top scorer, a title shared with other three players.