Dusky shark
- kingdom: Animalia
- phylum: Chordata
- class: Elasmobranchii
- order: Carcharhiniformes
- family: Carcharhinidae
- genus: Carcharhinus
- species: Carcharhinus obscurus
Manly
New South Wales
Australia
Vila Velha
Espírito Santo
Brazil
Tijuana
Baja California- La Paz
Baja California Sur- Guaymas
Sonora- Heroica Matamoros
Tamaulipas
Mexico
La Jolla
California- Woodmont
Connecticut- Port Salerno
Florida- Morehead City
North Carolina- Texas City
Texas
United States