Fly River roundleaf bat
Hipposideros muscinus
- Least concern
- Card rarity: Common
- Mammals

The Fly River roundleaf bat is a species of bat in the family Hipposideridae. It is found in West Papua, Indonesia and Papua New Guinea.
Classification
- Class
- Mammalia
- Order
- Chiroptera
- Family
- Hipposideridae
- Genus
- Hipposideros