How do I modify the user interface language in SSMS?

To change the language in Microsoft SQL Server Management Studio 2014:

> Tools > Options... > Environment > International Settings > Language

see the screenshot


This might help:

Install SQL Server 2008 R2 on a Multilingual User Interface (MUI) system on MSDN by Peter Saddow

From that link:

In summary:

  • English SQL Server is supported on all localized versions of operating systems
  • Localized versions of SQL Server are supported on the same localized operating system or English system with MUI enabled for the same language.

You can also reinstall it using a different language version of SQL Server.