Ivanis may refer to:
People Ivaniš (magnate) (), Serbian magnate (despot), Dušan's relative, governor in Toplica Ivaniš Berislavić (died 1514), Despot of Serbia Ivaniš Horvat (died 1394), Croatian nobleman Ivaniš Korvin (1473–1504), illegitimate son of Matthias Corvinus, King of Hungary Ivaniš Nelipić (1379–1435), Croatian nobleman Ivaniš Paližna (died 1391), Croatian knight
Places Ivăniș, a village in Întregalde, Romania