The striker reached an agreement with the Catalan club to rescind the final year of his contract, allowing him to pen a two-year deal at the Estadio Wanda Metropolitano.
Suarez will earn nine million euros after tax per year at Atletico, where he'll work under Diego Simeone.
For the 33-year-old, the 8-2 defeat to Bayern Munich, in which he scored, was his last game for the Blaugrana after a difficult final season.
In terms of numbers - 21 goals in 36 appearances - it was far from a bad campaign for Suarez, but a good part of it was hampered be injury.
This summer, after being told he's not part of Ronald Koeman's plans going forward, Suarez has reluctantly chosen to leave the Camp Nou.