Waser is a quarter in the district 3 of Winterthur, Switzerland.
Waser may also refer to: Anna Waser (1678–1714), Swiss painter Hedwig Bleuler-Waser (1869−1940), founder of the Swiss Federation of Abstinent Women Heini Waser (1913–2008), Swiss painter (full name: Urs Heinrich Otto Waser) Hugo Waser (born 1936), Swiss Olympic rower Johann Heinrich Waser (1600–1669), a mayor of Zürich, Switzerland Maria Waser (1878–1939), Swiss writer Stephan Waser (1920–1992), Swiss Olympic bobsledder