Sienna Arroyo
Miss Yosemite Valley’s Teen 2026

Sienna Arroyo is a sophomore at Alameda High School. She is proud to serve as your Miss Yosemite Valley’s Teen this year!

Her community service initiative, “Fair Trials Start With You” aims to change the narrative around jury service so that people will participate enthusiastically. She has worked to encourage young people to understand the importance of showing up by creating an ad campaign for jury duty in her school and surrounding community.

Sienna is bilingual in English and Spanish and is actively involved in athletics as a varsity soccer and track athlete. She is also team captain of her competitive club soccer team. She is the co-founder of the Mock Trial Team at Alameda High School, where she combines her interest in advocacy with teamwork and leadership. Sienna also enjoys reading, playing guitar with her Abuelo, caring for her two Angora bunnies (Coco and Chanel) and spending time with family and friends.

This year, she looks forward to meeting new people, expanding her service initiative, and representing her community with integrity and compassion.