Microsoft Dynamics NAV is an enterprise resource planning (ERP) software suite for mid-sized organizations. The system offers specialized functionality for manufacturing, distribution, government, retail, and other industries. The system was originally developed by Denmark-based Navision A/S until it was acquired by Microsoft in 2002.

Microsoft Dynamics NAV offers applications for financial management, human resources management, manufacturing, multiple and international sites, project management, sales and marketing, service management, supply chain management and business intelligence. The functionality is particularly strong in manufacturing and distribution. The system is known for being highly customizable and partners have developed a long list of industry-specific configurations to serve various vertical markets.

Microsoft Dynamics NAV deploys on the Windows operating system and Microsoft SQL Server, and is developed in the .NET framework, all of which are core Microsoft platform technologies. This offers customers a tightly integrated stack from infrastructure to application. The system is deployed on-site or hosted for an additional fee.