The initialism SDS can abbreviate:

• Satellite Data System
• Sodium dodecyl sulfate
• Students for a Democratic Society
• System Design Specifications
• Slovenian Democratic Party
• Union of Democratic Forces (Sauiz na demokratichnite sili)
• Serb Democratic Party
• Scientific Data Systems
• Sozialistischer Deutscher Studentenbund (Socialist German Student Union)
• A drill bit fixing system - see Chuck (engineering)