Daniel Kastner (born 3 November 1981) is an Austrian retired footballer who last played for FC Miesbach in Germany.
Kastner started his senior career with Braunau. In 2004, he signed for Red Bull Salzburg in the Austrian Football Bundesliga, where he made twenty-two league appearances and scored four goals. After that, he played for SV Ried, SK Schwadorf, SV Grödig, FK LiepÃÂja, Union Mondsee and Miesbach.