Johannis

Johannis may refer to:


 * Johannis Winar (born 1970), Indonesian basketball coach and former player
 * Klaus Johannis (born 1959), Romanian teacher and politician
 * Olaus Johannis Gutho (died 1516), Bridgettine monk
 * the Johannis or Iohannis, a Latin epic poem in honour of John Troglita, by Flavius Cresconius Corippus