During the
2018 FIFA U-20 Women's World Cup Nnadozie played all four matches. Against Haiti she received the "Dare to Shine" Player of the Match award for her good performance. Not much after the U-20 Tournament she was also selected for the
2018 Africa Women Cup of Nations where she stayed on the bench for all five matches, then at the 2019 Women WAFU Cup she was in goal for the Super Falcons spectacular performance. At age 19, Nnadozie was named to the
senior national team (commonly known as the Super Falcons) to compete at the
2019 FIFA Women's World Cup in France. As Nigeria's starting goalkeeper in the team's 2–0 victory over Korea, Nnadozie became the youngest goalkeeper to keep a clean sheet at the World Cup. After the World Cup, Nnadozie again helped the Falconets to gold medal at the African Games in Morocco saving three penalties in the shootout against Cameroon. On 16 June 2023, she was included in the 23-player Nigerian squad for the
FIFA Women's World Cup 2023. In the first game of the Women's World Cup against Olympic champions
Canada, Nnadozie was the captain for the
Super Falcons. She made three saves, including stopping a 50th-minute penalty from
Christine Sinclair. Her performances in the game secured a goalless draw for the Super Falcons, earned herself a Player of the Match award and garnered international attention. Nnadozie was called up to the Nigeria squad for the
2024 Summer Olympics. On 20 June 2025, Nnadozie was named in the final Nigeria squad for the
2024 Women's Africa Cup of Nations WAFCON, taking place from 5 to 27 July 2025. Placed in Group B their matches are against
Tunisia,
Botswana and
Algeria. She was part of the
Nigerian women national team squad that won the 2025
Women's Africa Cup of Nations and was the best goal keeper of the tournament. Subsequently, she was awarded the national honour
Officer of the Order of the Niger. == Career statistics ==