"Donna sola" ("Lonely Woman") is a 1972 Italian song composed by Dario Baldan Bembo (music), Bruno Lauzi, and Luigi Albertelli (lyrics) and performed by Mia Martini.
While looking for a suitable follow-up for Martini's first hit "Piccolo uomo", her producer Giovanni Sanjust listened to a Dario Baldan Bembo's instrumental song recorded by Gianni Bedori with the title "Inverno", and thought that with the right lyrics it would be a success. He first gave the task of drafting the lyrics to Luigi Albertelli, who penned an early version titled "Sola". After recording a demo, Martini was not satisfied with the result and asked Bruno Lauzi to rewrite the lyrics, with Lauzi retaining only a few lines, including the "sola" in the refrain.
The song turned to be both a commercial and critical success, and won the . Martini recorded the song in Spanish as "Mujer sola", as well as two versions in French and German that have remained unreleased.