Castelnau's Antshrike
- kingdom: Animalia
- phylum: Chordata
- class: Aves
- order: Passeriformes
- family: Thamnophilidae
- genus: Thamnophilus
- species: Thamnophilus cryptoleucus
- Borba
- Manacapuru
- Manaus
Amazonas
Brazil- Puerto Francisco de Orellana
Orellana
Ecuador