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- Sadism and masochism in fiction
- Safer sex
- Safe, sane and consensual
- Safeword
- Samois
- Saint Andrew's Cross (BDSM)
- Scarification
- Secretary
- Seduction: The Cruel Woman
- Sensory deprivation
- Service-oriented (sexuality)
- Servitude (BDSM)
- Session wrestler
- Sexual perversion
- Sexual roleplaying
- Shackles (Metal bondage)
- Shibari
- Shinju (BDSM)
- SIGNY award
- Single glove
- Slave auction (BDSM)
- Smotherbox
- Society of Janus
- Spanking bench
- Spanking horse
- Spanking Love
- Spanking paddle
- Speculum
- Spreadeagle
- Spreader bar
- Story of O
- Straitjacket
- Strap-on dildo
- Subspace (BDSM)
- Sukaranbo
- Suspension bondage
- Wendy Swanscombe
- Switch (BDSM)
- Switch (sexuality)
Read more about this topic: Outline Of BDSM