Millie Bobby Brown, UNICEF Goodwill Ambassador

Millie Bobby Brown takes a selfie with the students at a school in Brazil, which is located in a community where UNICEF supports vulnerable children and their families.

Actress Millie Bobby Brown was announced as UNICEF’s youngest-ever Goodwill Ambassador on World Children’s Day in 2018. Today, she uses her global platform to advocate for children’s rights and amplify youth voices around the world.

In 2019, Millie visited UNICEF’s global supply centre in Copenhagen to help pack emergency supplies and learn how UNICEF supports children worldwide. Millie also joined virtual events like the “World’s Largest Lesson Live” and spoke with young activists on issues like cyberbullying, education, and COVID-19 prevention.

In March 2025, Millie travelled to Brazil to meet adolescent girls and young children. To hear about their lives, the challenges they face, and how they are pursuing their dreams. She also spoke at the United Nations during the Commission on the Status of Women, championing girls’ rights.

"It’s a dream come true to become a UNICEF Goodwill Ambassador. I am looking forward to meeting as many children and young people as I can, hearing their stories, and speaking out on their behalf."

Millie Bobby Brown, United States

Millie Bobby Brown speaks up about bullying, social media and mental health.

Eleven-year-old Catarina speaks with Millie Bobby Brown about her experience as a girl in Brazil, the challenges she faces and her dreams for the future.