The City defender follows Sergio Aguero to the Camp Nou.
Barcelona have signed defender Eric Garcia on a contract until the end of the 2026 season.
The Spaniard will join the La Liga club when his contract with Manchester City ends at the start of next month.
He follows Sergio Aguero in moving to Barcelona from the Premier League champions.
Garcia came through the ranks at Catalan side, before joining City in 2018.
He started just three games in their title winning Premier League season.