SQL Server may refer to:
- Any DBMS that implements the SQL query language
- Microsoft SQL Server, a specific relational database management system (RDBMS) from Microsoft
- Sybase SQL Server, a DBMS developed by Sybase (and, for a period, jointly with Microsoft) that was the precedessor to Sybase Adaptive Server Enterprise and Microsoft SQL Server
- SQL Server Magazine, a publication of Penton Media.