Marianne Sessi Natorp (died 10 March 1847)[1] was an Italian soprano and canzonetta composer.
Sessi studied voice with her father and debuted at the Italian Opera in Vienna during the 1792–93 season.
She stopped performing in 1796, but returned to the stage in 1805 after the couple divorced, singing in operas by Domenico Cimarosa, Simon Mayr, Wolfgang Amadeus Mozart, Giovanni Paisiello, Antonio Salieri, and Niccolò Zingarelli.
In 1807, the Academy of Fine Arts in Florence awarded Sessi a gold medal.
Sessi stopped performing in 1836 and worked as a singing teacher at the Berlin Royal Opera, ultimately moving to Vienna where she lived with her sister Anna-Maria until her death.