SSDT

SSDT may refer to:

Computing

 * System Service Descriptor Table, an internal data structure within Microsoft Windows
 * Secondary System Description Table, an ACPI table
 * SQL Server Data Tools, the IDE for working with Microsoft SQL Server 2012 databases and associated objects

Other uses

 * Scottish Six Days Trial, a motorcycle competition
 * Scottish Solicitors' Discipline Tribunal
 * Sekiro: Shadows Die Twice