English abbreviations from siv to sjj
- SIV (Sullivan County Airport)
- SIW (Smithsonian World)
- SIWES (Students' Industrial Work Experience Scheme)
- SIWHP (Shut-in Well Head Pressure)
- SIY (Siskiyou County Airport)
- SJ (Svalbard and Jan Mayen (ISO 3166 digram))
- S.J. (Societas Jesu ("Society of Jesus", i.e. the Jesuits))
- SJA (Staff Judge Advocate)
- SJB (Senior Job Bank)
- SJC (San Jose International Airport)
- S.J.C. (Canonici Regulares Sancti Joannis Cantii (Canons Regular of Saint John Cantius))
- SJCCP (St. John's College Croquet Party)
- SJCE (Sri Jayachamarajendra College of Engineering)
- SJCRH (St. Jude Children's Research Hospital)
- SJD (Los Cabos International Airport)
- SJE (Jorge Enrique González Airport)
- SJF (Single Jewish Female)
- SJFHQ (Standing Joint Force Headquarters)
- SJFHQ(CE) (Standing Joint Force Headquarters (Core Element))
- SJFHQ-N (Standing Joint Force Headquarters - North)
- SJFN (Semi-Jacketed Flat Nose)
- SJH (Simply Junior High)
- SJHP (Semi-Jacketed Hollow Point)
- SJI (San Jose Airport)
- SJIT (San Jose International Triathlon)
- SJJ (Sarajevo International Airport)