Susana Schnarndorf Ribeiro (Porto Alegre, October 12, 1967) is a Brazilian Paralympic swimmer.
In 2005, after a lengthy triathlon career, at the age of 37, Schnarndorf began to experience the first symptoms of a mysterious degenerative disease that was later diagnosed as multiple system atrophy (MSA).
After a break from professional athletics, Schnarndorf returned to the sports world as a swimmer and is presently a member of the Brazilian Paralympic Swimming Team.