Josef Gassner may refer to:
Josef Gassner (skier) (born 1944), Liechtenstein skier Josef Gassner (politician, born 1831) (1831–1879), mayor of Triesenberg Josef Gassner (politician, born 1873) (1873–1943), Liechtenstein government councillor Josef Gassner (politician, born 1876) (1876–1951), member of the Landtag of Liechtenstein