Walter Morris "Jeff" Kalbfleisch (Kalbfleish) - Born December 18, 1911 in New Hamburg, Ontario - Died May 16, 1960 in Niagara Falls, Ontario was a Canadian ice Hockey defenceman.

He is known as Walter Kalbfleish in the NHL records, making his NHL debut on January 20, 1934, playing with the Ottawa Senators vs the Detroit Red Wings at the Ottawa Auditorium. He played 41 NHL games for four teams (Ottawa, St. Louis Eagles, New York Americans, Boston Bruins) including 5 in the playoffs, having 4 assists in total.