STD

STD is an abbreviation used in several different contexts that stand for different terms.

• Sexually transmitted disease
• Subscriber toll dialling
• Subscriber trunk dialling
• Internet standard (a subset of the RFCs)
• ISO 4217 currency code for the São Tomé and Principe Dobra

This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page.