Office of the Dean, Faculty of Science, Mahidol University consists of 12 division
- Undergraduate Curriculum Unit
- Educational Service Unit
- Science Career Support Unit
- Student Affair Unit
- Information Analytics Unit
- Stang Mongkolsuk Library
- Data & Knowledge Curation Unit
- Educational Innovation Unit
- Public Relations Unit
- Special Affairs Unit
- Budget Planning Unit
- Strategic Planning and Quality Development Unit
- Documents and Records Unit
- Personnels Unit
- Physical and Environmental Unit
- Reception and Information Services Unit
- Computer and Communication Unit
- Software Development Unit
- Audio-visual Unit
- Finance Unit
- Accounting Unit
- Budget Unit
- Procurement Unit
- Research Funding and Educational Scholarship Unit