JBO

JBO may refer to:


 * JBO (band), a German heavy metal band
 * Jay Bouwmeester (born 1983), Canadian professional ice hockey player
 * Jean-Baptiste Ouédraogo, President of Upper Volta from November 1982 until August 1983
 * Jerusalem Bird Observatory, Israel
 * Jodrell Bank Observatory, UK
 * Junior Boy's Own, a record label
 * Junk Bond Observatory
 * Lojban (ISO 639 code: ), a constructed language