Victor Léon, also Viktor Léon (born Victor Hirschfeld; 4 January 1858, Szenic, Nyitra County, Kingdom of Hungary, Austrian Empire (today Senica, Slovakia) – 3 February 1940, Vienna) was a well-known Jewish Austrian-Hungarian librettist.
He collaborated with Leo Stein to produce the libretto of Franz Lehár's romantic operetta The Merry Widow (Die lustige Witwe).