| Acronym | Definition |
|---|
| RIAM | Royal Irish Academy of Music (est. 1848; Dublin, Ireland) |
| RIAM | Recherche et Innovation en Audiovisuel et Multimédia (France) |
| RIAM | Rwanda Institute of Administration and Management |
| RIAM | Rapid Impact Assessment Matrix (analytical tool; environment) |
| RIAM | Research Institute of Applied Mechanics (Kyushu University; Fukuoka, Japan) |
| RIAM | Research and Innovation in Audiovisual and Multimedia (France) |
| RIAM | Research Institute of Advanced Materials (Seoul National University; South Korea) |
| RIAM | Remote Individual Animal Management (Australia) |