Carmona had scored a stunning late goal in the 2-1 semifinal win against Sweden, and the left-back struck again to claim Spain’s first women’s world title.
European champions England had gone into the game as slight favourites, having beaten Spain on the way to winning Euro 2022 last year.
And the Lionesses went close to opening the scoring early in the game when Lauren Hemp struck the crossbar with a left-foot strike from Rachel Daly’s pass 20 yards out.
But after Hemp saw another chance go awry with a weak effort from close range, Spain took the lead when they capitalised on Lucy Bronze losing the ball in midfield.
Spain launched a quick counterattack that saw the ball find Carmona, following a Mariona Caldentey lay-off, bursting forward down the left.