The Swedish golfer was all smiles as she was topped champion after a nerve-wracking finish to competitors.
Nordqvist was tied on 12 below with enjoying accomplice Nanna Koerstz Madsen coming into the 18th gap however stored her nerve to end with a par, as she watched the Dane undergo a double bogey.
Nordqvist had not gained a serious for almost 4 years, successful her first again on the 2009 LPGA Championship earlier than including her second on the 2017 Evian Championship.
“I’ve been ready for this one for some time, I have never gained in a few years,” Nordqvist mentioned after the win.
“There have been a variety of downs, a variety of onerous instances so I feel it makes this just a little sweeter.”
‘I may solely dream about successful’
Nordqvist had soared to the highest of the leaderboard going into the ultimate day after a faultless seven-under-par 65. Her unimaginable spherical featured seven birdies as she completed Saturday tied on 9 below with Koerstz Madsen.
The pair then discovered themselves locked in battle all through the final day, with the end result being selected the ultimate gap.
Whilst Nordqvist stored her calm, Koerstz Madsen suffered a nightmare with two errors on her strategy to the inexperienced.
It gave Nordqvist two putts to win the title and the 34-year-old made no mistake in successful her third main trophy on the second try.
The beaming champion, who now wins $870,000, was embraced by her husband and he or she set free a sigh of reduction.
“I may solely dream about successful the British Open,” she added.
“I used to be supposed to get married 20 minutes away from right here so this place is simply actually particular. I’ve by no means seen Carnoustie on this nice a form.”
Georgia Hall, Madelene Sagstrom and Lizette Salas shared the clubhouse lead going into the ultimate gap however completed joint second, a shot behind the winner. A upset Koerstz Madsen completed tied in third with Minjee Lee.