Alessandra Keller (born 27 January 1996) is a Swiss mountain biker competing in cross country.

[2] Alongside Jolanda Neff, she won the 2016 Swiss Epic, a mountain bike stage race.

[3] Aged 22 and still eligible to compete in the U23 category, she won the world cup race in Vallnord, Andorra, Short Track Cross-Country race in the elite class.

[5][6] She won silver at the 2022 MTB short track world championships in Les Gets, France, behind Pauline Ferrand-Prévot.

[7] In 2024 she was in Les Gets in Switzerland where she won the short track mountain bike World Cup race there.