SJ or S.J. may refer to:
Sjögren syndrome (SjS, SS) is a long-term autoimmune disease that affects the body's moisture-producing glands.
Sjumandjaja (Perfected Spelling: Syumanjaya; 5 August 1934 – 19 July 1985) was an Indonesian director, screenwriter, and actor.
Jabulani Hadebe (born 2 December 1984), better known by his stage name Sjava is a South African award-winning recording artist and actor from Johannesburg, South Africa.
Sjung (Swedish: [ˈɧɵŋː], "Sing") is the fourth studio album by the Swedish singer-songwriter Laleh, released on January 25, 2012. Produced by Laleh herself, the album was released on Warner Music Sweden and Lost Army.
Scott Jablonski (known by his stage name SJ) is an American singer-songwriter, performing artist, and attorney based in South Florida.
SJ Returns (Hangul: 슈주 리턴즈; RR: suju returns) is a Korean reality show of Super Junior that showcasing their life and show the charms of each member, that aired on Naver TV and V Live.
Sjeng Schalken (Dutch pronunciation: [ʃɛŋ ˈsxɑɫkə(n)]) (born 8 September 1976) is a former professional tennis player from the Netherlands.