Johann Georg Hasler may refer to:
Johann Georg Hasler (politician, born 1822), Mayor of Gamprin, Liechtenstein Johann Georg Hasler (politician, born 1826), member of the Landtag of Liechtenstein and Mayor of Eschen Johann Georg Hasler (politician, born 1895), member of the Landtag of Liechtenstein and Mayor of Eschen Johann Georg Hasler (politician, born 1898), member of the Landtag of Liechtenstein and Mayor of Gamprin