Wiebes, who rides for the SD Worx-Protime cycling team, finished 20 seconds ahead of Italy's former world champion Elisa Balsamo and 23 seconds ahead of Ireland's Lara Gillespie in the overall standings of the three-stage, 360-kilometre race.
The top Polish finisher, Olga Wankiewicz, was ninth overall, 36 seconds behind Wiebes.
This year's race was held in Poland's southeastern Lubelskie province on mostly flat terrain, passing through many picturesque towns and villages, organizers said.
Wiebes won Sunday's 101.3-kilometre final stage from the village of Janowiec, near the historic town of Kazimierz Dolny, to the regional capital Lublin.
The 27-year-old, who also won the first two stages, said she was pleased with her victory in Poland ahead of the Tour de France Femmes, the season's biggest race, which begins on August 1.
Lorena Wiebes wins stage one of the women's Tour de Pologne last Friday. Photo: PAP/Wojtek Jargiło
"It was a nice experience, and the race was well organised," she told reporters. "It was a good preparation for the Tour de France."
Race director Czesław Lang said this year's Tour de Pologne Women featured the strongest field in the event's history.
"Eight World Tour teams came to us, great riders, including Wiebes, now the world's best sprinter," he told reporters.
A total of 110 riders from 20 teams, including 14 Poles, competed this year, Polish state news agency PAP reported.
The women's Tour de Pologne was held in Poland's picturesque southeastern Lubelskie province. Photo: PAP/Wojtek Jargiło
Lang previously expressed disappointment that Poland's leading female cyclist, Katarzyna Niewiadoma, winner of the 2024 Tour de France Femmes, was not competing, saying the route lacked the mountainous terrain suited to her strengths.
"Our race is growing, which makes me incredibly happy," Lang said, adding that his focus had already shifted to the men's Tour de Pologne, which begins next Monday.
He encouraged fans to cheer on the riders along the route.
Tour de Pologne race director Czesław Lang. Photo: PAP/Maciej Kulczyński
The men's 83rd Tour de Pologne runs from August 3 to 9.
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Source: IAR, PAP, TVP Sport