MMS may stand for:

• Multimedia Messaging System (mobile phones)
• Methodology Management System (business process)
• Microsoft Metadirectory Services
• Microsoft Media Services (data streaming protocol)
• Multimedia Solutions (T-Systems Multimedia Solutions GmbH)

This page expands and disambiguates a three-letter-abbreviation. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page.