- Safety at Work
- Scholarship, Bronnbach
- Scholarship, RUB's Student Programme
- Scholarships and Awards for Students and Scientists
- Scholarships for Studying
- Scholarships for Studying Abroad
- School Lab
- School Projects for Girls
- School Projects, Young University
- SchoolUni
- Science Magazine RUBIN
- ScienceCareerNet Ruhr (SCNR)
- Seal
- Security in E-Business, Institute (ISEB)
- Senate
- Service (Campus Service)
- Service Centre (Computer Centre)
- Service Centre for Electronic Research Support Information
- Service Centre for Handicapped Students (SZB)
- Service Departments (Building NC, Chemistry)
- Services for Parenting RUB-Staff (ProKids)
- SKF (Student Cinema Club)
- Slavic Studies (Institute)
- Social Movements (Institute)
- Social Science (Faculty)
- Solvation Science @ RUB
- Sponsorship (Fundraising)
- Sports (for Students and Staff)
- Sports Facilities
- Sports Safety
- Sports Science (Faculty)
- Staff, Association of the Academic Staff (WPR)
- Staff, Association of the Non-academic Staff
- Staff, Directory of Employees
- Start-up Financing (Research Fund of the Rectorate)
- Statistics (Facts and Figures)
- Strategic Development Fund
- Student Cinema Club (SKF)
- Student Identity Card
- Student Parliament
- Student Services (AKAFÖ)
- Student Union (AStA)
- Student's Magazine (bsz)
- Student's Organisation in Biological Engineering (bts e.V.)
- Study Buddy
- Subject Centres (Study)
- Summer Party (annual)
- Summer Project Week for School Girls
- SZMA (Centre for Mathematical Services and Applications)