The 28-year-old team’s longest-tenured player joined the Blues from Doncaster Rovers Belles in 2014.
Bright, who has 58 England caps, participated in the Lionesses’ six games during their victory at Euro 2022 last month.
Bright said, “I can’t wait to keep competing for more awards.”
Paul Green, general manager of Chelsea, stated: “We are delighted that Millie has signed a new deal.
We are happy with how far she has come and all of her accomplishments, including her most recent victory at the Euros, which was a memorable occasion for the club. “The manner that she leads on and off the field is second to none,” we say.
Bright has contributed to Chelsea’s 12 major championships, including six WSL titles, four FA Cup victories, and two Continental Cups.