Walter Müller or Mueller may refer to:
- Walter Mueller (1894–1971), American baseball player
- Walter H. Mueller (?–2011), American politician
- Walter Müller (actor) (1911–1969), Austrian film actor
- Walter Müller (biathlete) (1940–1966), Austrian Olympic biathlete
- Walter Müller (Panzerjäger) (1914–2003), German army officer
- Walter Müller (footballer, born 1970) (born 1970), Swiss footballer
- Walter Müller (footballer, born 1920) (1920–2010), Swiss footballer
- Walter Müller (footballer, born 1910) (1910–?), Swiss footballer
- Walter Müller (German gymnast) (1930–2021), German Olympic gymnast
- Walter Müller (Swiss gymnast) (born 1940), Swiss Olympic gymnast
- Walter Müller (handballer) (born 1957), Swiss handballer
- Walter Andreas Müller (born 1945), Swiss stage and film actor
- Walter W. Müller (born 1933), German specialist in ancient South Arabia and Semitic epigraphy
- Walter Müller (writer), Austrian writer, winner of an award at the 1979 Festival of German-Language Literature
This disambiguation page lists articles about people with the same name.
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