Graziosa Maggi (10 June 1925 – 15 September 2022), better known as Diana Maggi, was an Italian-born Argentine film, television, radio, and stage actress who was known for starring in the 1950 film Campeón a la fuerza.

Maggi was born in Milan, Italy, on 10 June 1925. She married actor Juan Carlos Dual, after meeting him at rehearsals for a play. The couple married in 1968 and were together until Dual's death in August 2015. Maggi died on 15 September 2022, at the age of 97.