O Abissal
- Year: 1970
- Country: Brazil
- Genre: Fantasy, Adventure, Music
- Studio: Submerge Filmes
- Keyword: musical, filosofia, luz, sombra, war, soldado, fantasia, caverna
- Director: Ari Maricato
- Cast: Angela Maria Prestes, Júnior Vieira, Laís Efstathiadis