Walter Haas
Walter Haas or Walter de Haas is the name of the following people:
- Walter de Haas (diplomat) (1864–1931), German diplomat and civil servant
- Walter de Haas, pseudonym Hanns Günther (1886–1969), German author, translator and editor
- Walter Haas (diplomat) , German diplomat
- Walter Haas (politician) (1920–1996), German politician (SPD)
- Walter Haas (building researcher) (1928–2005), German building researcher and preservationist
- Walter Haas (trade unionist) (* 1941), German trade union official
- Walter Haas (Germanist) (* 1942), Swiss Germanist and university professor
- Walter A. Haas (1889–1979), American manager