Walter Fisher may refer to:
Walter Fisher (MP), member of parliament for Hythe Walter Fisher (missionary), (1865–1935) medical missionary to Zambia Walter Fisher (professor) (1931–2018), American professor Walter Fisher (baseball) (1867–1921), American baseball player Walter H. Fisher (1849–1890), English singer and actor Walter Kenrick Fisher (1878–1953), American marine biologist, zoologist and illustrator Walter L. Fisher (1862–1935), United States Secretary of the Interior