- Steve Ouma Akoth and Makau Mutua
- Steve Parson
- Steve Sharra
- Steven Friedman
- Steven Holms
- Steven J Klees
- Steven Slap (Executive Director, Siksik Foundation for Environmental Justice)
- Storymoja
- STP-Press
- Strike Thokoane
- Stuart Wilson
- Students Security Committee, Obafemi Awolowo Unniversity Ile-Ife
- Suba Churchill
- Subhankar Banerjee
- Sudan Democracy First Group
- Sudan Solidarity Network
- Sudanese civil society networks
- Sudanese Group for Democracy and Elections and the Sudanese Network for Democratic Elections
- SUDO (UK)
- SUDO UK
- SUDO(UK)
- Sue Adams
- Sue Valentine
- Suely Aldir Masseder
- Sukant Chandan
- Sukuma Kenya
- Suleyman Garaba Konte
- Sundiata Xian Tellem
- Sungu Oyoo
- Suraj Kumar
