| Etsuko Nishio | |
| Birth Date: | 9 March 1973 |
| Birth Place: | Toyota, Aichi, Japan |
| Genre: | Japanese pop |
| Occupation: | Singer |
| Years Active: | 1988 - 1998 |
is a Japanese singer, actress and model, known for her songs Ja Ja Uma ni Sasenaide and Don't mind Lay Lay Boy from the Ranma ½ anime. In 1992 she became a gravure idol, releasing several nude photobooks and videos. She also starred in a couple feature films.