Johann Haas
Johann Haas is the name of the following people:
- Johann Christof Haas (1753–1829), Austrian painter
- Johann Baptist Haas (copperplate engraver) (1732–1791), German copperplate engraver
- Johann Baptist Haas (politician) (1857–1935), Swiss farmer and politician
- Johann Daniel Haas (entrepreneur, 1731) (1731–1798), German tobacco manufacturer and trader
- Johann Daniel Haas (entrepreneur, 1780) (1780–1849), German tobacco manufacturer and politician
- Johann Gottfried Haas (1737–1815), German classical philologist, Hebraist, Romanist, grammarian and lexicographer
- Johann Otto Haas (1906–1944), Austrian resistance fighter
See also: