Hannan

Hannan may refer to:


 * Hannan (surname), a common Irish surname coming from the Gaelic Ó hAnnáin or Ó hAnáin
 * Hannan (Arabic: "gracious"), popular first name in Middle-Eastern cultures
 * Hannan, Osaka, city in southern Osaka Prefecture, Japan
 * Hannan University, a university located to the south of Osaka, Japan
 * Hannan District, in Wuhan, Hubei, China
 * Hannan Rathorr, in Kashmir