The winner of The Great British Sewing Bee 2025 (season 20 if counting from the first series) is Caz from Staffordshire. She was crowned the champion in the 11th series of the BBC show by judges Esme Young and Patrick Grant during the final aired on Tuesday, September 16, 2025. Caz impressed with her complex garment-making skills, including challenges like bias cut slip dresses and trompe l'oeil fabric illusions, and was described as "totally overwhelmed" by her victory.

For context, the 2020 winner (series 6) was Clare Bradley, a hospital doctor from Winchester, who won Britain's Best Amateur Sewer of 2020.

Thus, the most current winner for the latest series aired in 2025 is Caz.