Stage 1 of the 2023 La Vuelta Ciclista a España was a flat stage that took place on .

The stage started in Barcelona and finished in Barcelona, starting at with an expected finish at (average speed of 55 km/h).

The total distance of the stage was 14.8 km. The stage included 0 categorized climb(s) and 1 checkpoint(s), and had a total elevation gain of 42 m, and a total descent of -11 m.