| Isabelle Vieira | |
| Fullname: | Isabelle Marques Vieira |
| Strokes: | Freestyle |
| Birth Date: | 1971 11, mf=yes |
| Birth Place: | Brazil |
| Weight: | 64kg (141lb) |
Isabelle Marques Vieira (born November 13, 1971) is a former Olympic freestyle swimmer from Brazil, who participated in a Summer Olympics for her native country.[1]
At the 1988 Summer Olympics in Seoul, she finished 11th in the 4×100-metre freestyle, and 37th in the 100-metre freestyle.
She was at the 1991 Pan American Games in Havana, where she earned a bronze medal in the 4×100-metre freestyle.[2]