Sim
- Alistair Sim
- Apollo command and service module
- Computer simulation
- Desmond Sim
- HP Systems Insight Manager
- Kihwan Sim
- SIM (film)
- SIM card
- SIM-VIII
- Scuola Italiana di Montevideo
- Security information management
- Selected ion monitoring
- Service de sécurité incendie de Montréal
- Servicio de Inteligencia Militar
- Servicio de investigación Militar
- Serving In Mission
- Servizio Informazioni Militari
- Shěn (surname)
- SiM (band)
- Siberian International Marathon
- Sim (Korean surname)
- Sim (Scottish surname)
- Sim (actor)
- Sim (album)
- Sim (historical region)
- Sim (pencil game)
- Sim (river)
- Sim Wong Hoo
- Sim, Russia
- Sim4
- Simei MRT station
- Simi Valley station
- Simm (disambiguation)
- Simming
- Sims (disambiguation)
- Simsim (disambiguation)
- Singapore Institute of Management
- Society for Industrial Microbiology and Biotechnology
- Society for Information Management
- Space Interferometry Mission
- Sım
- TV SIM
- Thomas Robertson Sim