It brings an end to his 10 years at Manchester City.
Sergio Aguero will join Spanish giants Barcelona on a two-year deal when his contract with Manchester City expires at the end of June.
It had been announced earlier this season that the 32-year-old would not be getting a new deal at the Premier League champions, and he leaves them as their all-time leading goalscorer with 260 goals in 390 games.
He had been heavily linked with a move to Barca, with the BBC reporting that he will have a buyout clause of $100 million (£86 million).
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In a statement, Manchester City said that the Argentinian leaves the club "with his place in the pantheon of City greats confirmed."
The statement continues: "His final game in a City shirt came in the Champions League final and fans will fondly remember Aguero’s Manchester farewell, which saw him score twice in front of returning fans to break the Premier League record for goals for a single club.
"In March it was confirmed a statue of the City striker has been commissioned to stand alongside those currently in work to honour David Silva and Vincent Kompany. His legend will further be marked by the installation of dedicated and permanent mosaic at the City Football Academy.
"Everyone at Manchester City would like to take this opportunity to thank Sergio for his incredible contribution to our success over the last decade and wish him well on the remainder of his career."
The striker leaves the Premier League not just as City's record goalscorer, but also as the highest-scoring overseas player in the history of the league.
He sits at fourth in the list of all-time Premier League goalscorers with 184 and has the best minutes-to-goal ratio in the competition's history.
