Adrian Simon Gill (born January 3, 2006) is an American professional soccer player who plays as a central midfielder for Major League Soccer club Atlanta United.
Born in Denver, Colorado, Gill moved to Catalonia as a child due to his parents' work commitments. In 2017, shortly after moving to Spain, he joined CornellÃÂ, before a move to Spanish giants Barcelona the following year.
Having progressed through Barcelona's La Masia academy, he signed his first professional contract with the club in March 2022. Gill suffered an ACL injury in September 2023, shortly after training with the first team for the first time, and went through 14 months of rehabilitation before returning to Barça's U19 team in October 2024 and making 3 appearances that fall. On August 21, 2025, Gill signed a one-year contract extension with Barcelona. The following 31 October, Gill returned to his former youth club, Cornellà, joining them on a season-long loan deal.
On 27 January 2026, Major League Soccer club Atlanta United announced the signing of Gill from Barcelona, signing him on a one-year deal with options to extend until 2030. Barcelona retains a percentage of any future sale.
Gill has represented the United States at youth international level. He is also eligible to play for Spain, but declined an invitation by the Royal Spanish Football Federation to represent them in April 2022, expressing his desire to represent the United States at senior international level.
Barcelona