Walter Korn (May 22, 1908 in Prague, Bohemia, Austria-Hungary (now Czech Republic) – July 9, 1997 in San Mateo, California, United States) was an Austro-Hungarian writer of books and magazine articles about chess.
One of his few known games is a draw against a 13-year-old Gordon Crown, published in the April 1943 issue of Chess.
A new edition of MCO would come out every five years or so, and it was essential reading for tournament chess players.
He immigrated to the United States in 1950, and lived in Detroit, where he worked as business manager of the Jewish Community Center.
From 1960 to 1964, he lived in Israel, working for both the Joint Distribution Committee and the United Jewish Appeal.