| Sandra Grau | |
| Full Name: | Sandra Grau Muxella |
| Birth Date: | 27 April 1970 |
| Birth Place: | Sant Julià de Lòria, Andorra |
| Country: | Andorra |
| Sport: | Alpine skiing |
Sandra Grau Muxella (born 27 April 1970) is an Andorran alpine skier. She competed in three events at the 1988 Winter Olympics.[1]
She is the sister of alpine skier Vicky Grau.