Xiye Bastida is a 21 year old Mexican climate justice activist. She is part of the Otomi-Toltec Indigenous community, located in the highlands of Central Mexico. In April of 2020, she convened and co-founded Re-Earth Initiative to highlight frontline communities and advocate for solution-oriented efforts.

Xiye has been a leader in the youth climate movement since she started organizing climate strikes and protests in 2019. In September of that year, she co-organized a 300,000 person climate strike in New York. Xiye was named Ambassador to the United Nations High Level Champions in 2021. She is the recipient of the 2018 United Nations Spirit Award, and was named ELLE Woman of the Year in 2023.