Breanna Myles (born February 18, 2003^[1]) is an American beauty pageant titleholder who was crowned Miss Teen USA 2021. Myles had previously been crowned Miss Florida Teen USA 2021, and became the first entrant from Florida to win Miss Teen USA.

Myles was born in Kentucky to a Dominican mother and an African-American father, and moved to Florida at age seven.^[2] She was raised in Port St. Lucie, Florida, and graduated from high school in 2021, with a dual enrollment associate degree from Indian River State College.^[3] Prior to becoming Miss Teen USA, Myles was studying computer science and musical theatre at Florida State University and aspired to become a software engineer.^[3]

Myles began her pageantry career at age 12.^[2] She first competed in Miss Florida Teen USA in 2020, where she placed as the third runner-up despite falling on stage.^[2] Myles later returned the following year, and ultimately was crowned Miss Florida Teen USA 2021.^[2] As Miss Florida Teen USA, she received the right to represent Florida at Miss Teen USA 2021.

Myles won Miss Teen USA 2021 on November 27, 2021, in Tulsa, Oklahoma.^[4][5] She was crowned by the outgoing titleholder Kiʻilani Arruda, and was the first winner from Florida to be crowned Miss Teen USA. Myles was also the first (and only) titleholder under the new Miss USA Organization.^[6][7]