| Alexandra Caso | |
| Fullname: | Alexandra Caso Sierra |
| Birth Date: | April 25, 1987 |
| Birth Place: | Santo Domingo |
| Hometown: | Santo Domingo |
| Weight: | 59kg (130lb) |
| Spike: | 243cm (96inches) |
| Block: | 241cm (95inches) |
| Position: | Libero |
| Nationalyears: | 2002–2005 |
| Nationalteam: |  Dominican Republic |
| Updated: | July 2010 |
Alexandra Caso Sierra (born April 25, 1987) is a volleyball player from the Dominican Republic, who competed for her native country at the 2004 Summer Olympics in Athens, Greece, wearing the number #6 jersey. There she ended up in eleventh place with the Dominican Republic women's national team.[1] Caso played as a libero.
Playing with the Dominican Republic U-18 National Team, she won the "Best Libero", and the silver medal at the 2002 NORCECA Girls Youth Continental Championship U-18.[2]
She claimed the gold medal with the national squad at the 2003 Pan American Games.[3] Caso was named "Best Libero" at the 2005 NORCECA Championship.[4]