S&D often refers to the Progressive Alliance of Socialists and Democrats. It may also refer to:

• Search and destroy, refers to a military strategy that became a notorious component of the Vietnam War
• Silver & Deming, a type of reduced-shank drill bits
• Somerset & Dorset Joint Railway, was an English railway line
• Speech and Debate
• Spybot – Search & Destroy, a popular spyware and adware removal program compatible with Microsoft Windows 95 and later
• Supply and demand, an economic model of price determination in a market

• D&S (disambiguation)

This disambiguation page lists articles associated with the title S&D.
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