Organizer
- Community organizing
- Electronic organizer
- Embryogenesis
- Event manager
- Open Programming Language
- Organiser (magazine)
- Organization (disambiguation)
- Organizer box
- Organizing (disambiguation)
- Party organizer
- Personal organizer
- Professional organizer
- Spemann-Mangold organizer
- The Organizer
- The Organizer (album)
- Union organizer