Microsoft Dynamics 365 Business Central (D365BC) is an enterprise resource planning (ERP) system from Microsoft. The product is part of the Microsoft Dynamics family, and is the successor product to Microsoft Dynamics NAV, Microsoft Dynamics GP, and Microsoft Dynamics SL.  It shares the same codebase as NAV  and NAV's C/AL language is being phased out in favor of the new AL language.

The product is primarily a web-based Software as a Service solution accessed via dynamics.com, though presently there is an on-premise version available, which includes the option to use the NAV role-tailored "thick" client.