Making the announcement on social media, Millie said that it was one of the “hardest decisions” she’s ever had to make.
She explained: “Football has given me so much, and representing my country has always been my greatest honour.
“My pride and ego tells me to go, but I think the team and the fans deserve more. Right now I am not able to give 100 per cent mentally or physically.”
Millie Bright has been an important player for England since making her debut for the senior team nine years ago.
She was vice-captain during England’s successful Euros 2022 campaign, where the team lifted their first major trophy on home soil.
A year later, at the 2023 Women’s World Cup, Bright replaced the injured Leah Williamson in captaining the Lionesses.
The team made it all the way through to the final, where they finished the tournament as runners-up after losing 1-0 to Spain.