Bleuler is a German language surname. Notable people with the surname include:
Eugen Bleuler (1857–1939), Swiss psychiatrist Hermann Bleuler (1837–1912), Swiss engineer and army officer Johann Heinrich Bleuler (1758–1823), Swiss painter Johann Ludwig Bleuler (1792–1850), Swiss painter Konrad Bleuler (1912–1992), Swiss physicist Manfred Bleuler (1903–1994), Swiss physician and psychiatrist