Sandra Lorena Arenas Campuzano (born September 17, 1993 in Pereira, Colombia) is a Colombian race walker.

She won the silver medal in the 2020 Summer Olympics in Tokyo in the 20 kilometer race walk.

She competed at the 2012 Summer Olympics in London in the 20 kilometer race walk.

[3] In July 2012, Arenas won the bronze medal in the 10km race walk event at the 2012 World Junior Championships in Athletics with a time of 45:44.46.

[4] Arenas placed 29th in 20km race walk at the 2012 Summer Olympics with a time of 1:33:21.