The Catalan giants, delighted with the goalkeeper's performances, confirmed the agreement on Monday, weeks after the 35-year-old Polish shot-stopper accepted their offer.
The Blaugrana made a bold move to sign Szczesny in September 2024 following a serious knee injury to Marc-Andre ter Stegen.
At the time, Szczesny was retired and enjoying life in Spain, but he revealed that a call from Barcelona and his compatriot Robert Lewandowski was impossible to refuse. "The chance to play for such a historic club was something I couldn't turn down," Szczesny said.
It took the veteran goalkeeper a few months to find his rhythm, but his breakthrough came in early 2025. During the Spanish Super Cup semi-final in Saudi Arabia, Inaki Pena arrived late for a team meeting, prompting manager Hansi Flick to bench him. Flick, known for his intolerance of tardiness, handed Szczesny the starting role.
From that moment, Szczesny cemented his place as Barcelona's first-choice goalkeeper across La Liga, the Copa del Rey, and the Champions League.
In his debut season, Szczesny played 30 matches, conceding 36 goals and keeping 14 clean sheets. His contributions helped Barcelona secure three trophies, though they fell just short of reaching the Champions League final.
Flick praised Szczesny's experience, saying, "Wojciech's leadership and composure have been vital for us."
With Szczesny's extension and the arrival of Joan García, Barcelona now face decisions regarding their goalkeeping department. Inaki Pena is expected to depart, while Marc-Andre ter Stegen has expressed his desire to stay. "I'm fully committed to this club," ter Stegen said last month.
The focus now shifts to how Barcelona balance their goalkeeping options while maintaining their competitive edge in domestic and European competitions.