| Catalina Walther | |
| Birth Date: | 10 May 1983 |
| Birth Place: | San Isidro, Argentina |
| Height: | 168 cm |
| Weight: | 53 kg |
| Classes: | Mistral, Raceboard |
| Show-Medals: | yes |
Catalina Walther (born 10 May 1983) is an Argentine windsurfer. She competed in the women's Mistral One Design event at the 2004 Summer Olympics.[1]