MMI
- 2001 (disambiguation)
- 2001 (year)
- MMI Preparatory School
- Madurai Mani Iyer
- Man-machine interface
- Manufacturers Mutual Insurance
- Marion Military Institute
- Marymount International School of Rome
- Maximum medical improvement
- McMinn County Airport
- Methimazole
- Miami Military Institute
- Millersburg Military Institute
- Miss May I
- Modified Mercalli intensity
- Modified Mercalli intensity scale
- Monolithic Memories
- Motorola Mobility
- Multi Media Interface
- Multi mode interferometer
- Multiple mini interview
- Municipal Mutual Insurance
- Muslim Mosque, Inc.
- NYSE Arca Major Market Index
- Roman numerals
- Universal Technical Institute
- Unstructured Supplementary Service Data
- W3C MMI