| MSES | Management Studies and Economic Systems 
| Others |
| MSES | Manitou Springs Elementary School
| Others |
| MSES | Mary Scroggs Elementary School
| Others |
| MSES | Master of Science in Energy and Sustainability
| Others |
| MSES | Master of Science in Engineering Science
| Others |
| MSES | Master of Science in Engineering Systems
| Others |
| MSES | Master of Science in Environmental Science
| Others |
| MSES | Master of Science in Environmental Sciences
| Others |
| MSES | Master of Science in Environmental Studies
| Others |
| MSES | Materials Science and Engineering Symposium
| Others |
| MSES | Matters of state environmental significance
| Others |
| MSES | Medical Staff Engagement Society
| Others |
| MSES | Mental State Examination Scale
| Others |
| MSES | Micro and Small Enterprise Surveys
| Others |
| MSES | Millbury Street Elementary School
| Others |
| MSES | Ministry of Science Education and Sports
| Others |
| MSES | Minnesota Surveyors and Engineers Society
| Others |
| MSES | Mizzou Special Events Society
| Others |
| MSES | Moorefield Station Elementary School
| Others |
| MSES | Mountain States Environmental Services
| Others |
| MSES | Multi Service Ethernet Switches
| Others |
| MSES | Multiplex Section Errored Second
| Others |