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.
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.
Jabulani Hadebe (born 2 December 1984), better known by his stage name Sjava is a South African award winning recording artist from Johannesburg, South Africa.
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.
Sigurjón Birgir Sigurðsson (born 27 August 1962), known as Sjón ( SYOHN), is an Icelandic poet, novelist, and lyricist.