"O mia bèla Madunina" (Milanese dialect: [o mi.a ˈbɛla maduˈniːna]; Italian language: Oh mia bella Madonnina; meaning "Oh my beautiful little Madonna") is a song by Giovanni D'Anzi which is an unofficial city anthem of Milan.

[1] The title refers to the golden statue of the Virgin Mary on the spire of Milan Cathedral visible all over the city, namely the Madonnina (Madunina in the Milanese dialect).

The song was written and composed in 1934 by the Milan songwriter Giovanni D'Anzi (1906–1974).

In the 1930s, many immigrants from the Mezzogiorno, especially from the region of Naples, came to Milan bringing with them their famous Neapolitan songs such as "'O sole mio".

Musically, "Oh mia bela Madunina" has similarities to American ballads of the time.