Johann Weiß

Johann Weiß may refer to:


 * Johann Baptist Weiß (priest) (1753–1800), Benedictine priest, teacher and playwright
 * Johann Baptist Weiss (1820–1899), German historian
 * Johann Baptist Weiß (1814–1850), Austrian schoolmaster, organist and early tutor of Anton Bruckner
 * Johann Jacob Weiss (c. 1662–1754), composer of lute music
 * Johann Sigismund Weiss, the originally attributed composer of Flute sonata in D major (HWV 378) (c. 1707)
 * Johann Weiss, see Pirate Party of Canada
 * Johann Weiss, Viennese lawyer and WW1 veteran, executed by Eduard Roschmann