STD (disambiguation)
- C++ Standard Library
- D (programming language)
- Doctor of Sacred Theology
- Internet Standard
- Mayor Buenaventura Vivas Airport
- Rust (programming language)
- S.T.D (Shelters to Deltas)
- STD
- STD Bus
- STD Motors
- Sentinelese language
- Sigma
- Standard (disambiguation)
- Strathclyde
- Stroud railway station
- Subscriber trunk dialling
- São Tomé and Príncipe dobra
- Union of Theatre Workers of the Russian Federation