SJ or S.J. (Society of Jesus) after a person's name means he is a Jesuit priest or brother. Other usages may refer to:
Sjögren syndrome (SjS, SS) is a long-term autoimmune disease in which the moisture-producing glands of the body are affected.
Sjumandjaja (Perfected Spelling: Syumanjaya; 5 August 1934 – 19 July 1985) was an Indonesian director, screenwriter, and actor.
SJ (born Scott Jablonski in 1977) is an American singer-songwriter, performing artist, and attorney from South Florida.
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.
Sigurjón Birgir Sigurðsson (born 27 August 1962), known as Sjón ( SYOHN), is an Icelandic poet, novelist, and lyricist.