Prince Stefan of Juliana, born Stefan Danilo Maria Pietro di Juliana (1906-1943) was a Julianan prince. The only son of King Danilo III of Juliana, he was the Crown Prince of Juliana from his birth until his death.
In 1934, he married Duchess Margarita Maria of Württemberg (1902-1945). They had two daughters: Giovanna (1936) and Antonia (1939-2018). During the Italian invasion, they stayed in Yugoslavia and Egypt with their mother. After her death, the princesses were adopted by Stefan's younger sister Martina.