Duke of Galliera is an Italian noble title that has been created several times for members of different families. The name of the title refers to the comune of Galliera, which is located in the Province of Bologna in Emilia–Romagna.

Josephine of Leuchtenberg, also Josefina, was Queen of Sweden and Norway from 8 March 1844 to 8 July 1859 as the wife of King Oscar I. She was also Princess of Bologna from birth and Duchess of Galliera from 1813. She was regarded as politically active during the reign of her spouse and acted as his political adviser, actively participating in government affairs. She is acknowledged as having introduced more liberal laws regarding religion.