Walter Morris "Jeff, Jake" Kalbfleisch (December 18, 1911 – May 16, 1960) was a professional ice hockey defenseman who played 4 seasons in the National Hockey League for the Ottawa Senators, St. Louis Eagles, New York Americans and Boston Bruins. He was born in New Hamburg, Ontario. He played junior and senior hockey in Niagara Falls, Ontario from 1929 to 1933. That year he signed as a free agent with the Ottawa Senators. He played 22 games for the Senators in 1933-34 and then 3 mroe for their successor team the St. Louis Eagles in 1934-35.