Lumi Ella Pollack (born January 18, 2009) is an American actress. She is best known for her roles in The Fallout (2021) as Amelia Cavell, in Autumn and the Black Jaguar (2024) as Autumn Edison, in Electric Bloom (2025) as Posey Parker and in Camp Rock 3 (2026) as Rosie.
Lumi Ella Pollack was born in Aventura, Florida, on January 18, 2009, to Richard and Emi Pollack. She is of Japanese, Colombian and Jewish descent. She became interested in acting and singing after going to a performing arts sleep away camp at the age of 8 in 2017.
Pollack's first onscreen role was Amelia Cavell in The Fallout (2021). In 2024, she starred in Autumn and the Black Jaguar as Autumn and voiced Westyn/Wanessa in Dee & Friends in Oz.
In 2025, she made her debut as Posey Parker in Electric Bloom (2025–present). On September 2025, it was announced that Pollack was cast as Rosie in Camp Rock 3 (2026).