Smetak
- Year: 2018
- Country: Brazil
- Genre: Documentary
- Studio: Gambiarra Sonora
- Keyword: musician, experimental
- Director: Nicolas Hallet, Mateus Dantas, Simone Dourado
- Cast: Walter Smetak, Mateus Dantas, Rogério Duarte, Thomas Gruetzmacher, Guilherme Magalhães Vaz, Marco Scarassatti