Diadem roundleaf bat
- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Chiroptera
- family: Hipposideridae
- genus: Hipposideros
- species: Hipposideros diadema
Rawaapu
Central Java
Bulakbanjar
Cibuluh Satu
Emplak
Kalipucang
West Java
Indonesia
Kuah
Kedah
Bentong Town
Pahang
Malaysia
Pili
Bicol
Aggugaddan
Quibal
Cagayan Valley
Los Baños
Calabarzon
Bunga
Catbalogan
Eastern Visayas
Philippines