- ABREN stands for Australian Biological Research Network
- ABREN stands for Asian Bioinformatics Research and Education Network (Kyushu Institute of Technology; Fukuoka, Japan)
- ABREN stands for Amigos de Bibliotecas Recreativas y Educativas Nicaraguenses
- ABREN stands for Amigos de Bibliotecas Recreativas y Educativas Nicaraguenses (Friends of Nicaraguan Libraries)
ABREN