OMS or Oms may refer to:

• Microsoft Operations Management Suite (MOMS)

• Office Mobile Service - Microsoft Office Mobile Service (OMS) is the messaging component developed for Outlook 2010 and SharePoint 2010. With OMS, users can integrate the mobile capabilities of Outlook and SharePoint with their mobile devices.

• Oracle Management Server - an executable component of Oracle database servers
• Order Management System - business software used in logistics for order entry and processing
• Open Media Commons - an open-source internet group