J23
J23, J 23, J.23 or J-23 may refer to:
Agent J-23, the code name for Hans Kloss, the fictional World War II secret agent appearing in the 18-episode 1967–1968 Polish television series Stawka większa niż życie
Malaysia Federal Route J23, a major road in Johor, Malaysia
S/2003 J 23, a natural satellite of Jupiter
Danny K, a studio album
