| IPES | Image Processing and Expert Systems 
| Others |
| IPES | Improved Pes
| Others |
| IPES | Improved Proposed Encryption Standard
| Others |
| IPES | In Plane Elongated Source
| Others |
| IPES | Information Processing Equipment and Software
| Others |
| IPES | Institute for Physical Education and Sport
| Others |
| IPES | Instituto de estudios Politicos, Economicos, y Sociales
| Others |
| IPES | Instituto de Perfeccionamiento y Estudios Superiores
| Others |
| IPES | Integrated Photonic and Electronic Systems
| Others |
| IPES | Interactive Power Electronics Seminar
| Others |
| IPES | International Perspectives on Education and Society
| Others |
| IPES | International Police Executive Symposium
| Others |
| IPES | International Political Economy Society
| Others |
| IPES | Iroquois Point Elementary School
| Others |