Lothar (disambiguation)

Lothar is a family name and a given name.

Lothar may also refer to:
 * Lothar (storm), an extratropical cyclone that hit Central Europe in 1999
 * Lothar (Metabarons), a fictional robot in Metabarons
 * Lothar, Nepal
 * Lothar I or Lothair I (795–855)
 * Lothar, a fictional character and sidekick of Mandrake the Magician