Walter Koch may refer to:
Walter Koch (astrologer) (1895–1970), German astrologer Walter Koch (paratrooper) (1910–1943), German World War II paratrooper Walter Koch (physician) (1880–1962), German physician Walter J. Koch (born 1961), American scientist Walter Koch (politician), Saxon and German diplomat, lawyer and politician Walter Koch (1911–1998), business owner of Machwitz Kaffee