Stage 6 of the 2025 Volta Ciclista a Catalunya was a hilly stage that took place on .

The stage started in Berga and finished in Berga, starting at with an expected finish at (average speed of 40 km/h).

The total distance of the stage was 145.9 km. The stage included 0 categorized climb(s) and 0 intermediate sprint(s), and had a total elevation gain of 1850 m, and a total descent of -1683 m.