SRD may refer to:
- Self Reliant Diver, a dive course by Padi
- Centre for Sustainable Rural Development (SRD), a Vietnamese NGO
- Services Reconnaissance Department, an Australian agency of World War II
- Short range device, a license-free communication device with low transmission power
- Step recovery diode, a type of semiconductor diode
- Strathcona Regional District, a regional government in British Columbia, Canada
- System Reference Document, a set of role-playing game mechanics based on Dungeons and Dragons
- Surinamese dollar's ISO 4217 currency code
- Subreddit Drama on reddit
- Stapleton Road railway station's station code
- Single-radial-immunodiffusion an immunological technique used to quantify vaccine potency
- SR-D, a digital sound format developed by Dolby
- Sardinian language ISO 639 code
- Special Research Department movie line "SRD facility" from Jason Bourne Ultimatum the training facility at 415 East 71st street in New York.