Francesco Gianotti (Francisco in Spanish; April 4, 1881 – February 13, 1967) was an Italian architect who designed many important Art Nouveau buildings in Buenos Aires, Argentina.
Gianotti arrived in Buenos Aires, in 1909 where, together with his compatriot, Mario Palanti, he took charge of the construction and decoration of the Italian Pavilion at the International Centennial Exposition of 1910.
In 1911 he opened his own studio and started to work on the design of residential houses and apartment buildings, using a mixture of Italian and French styles.
Unlike his colleagues Virginio Colombo and Mario Palanti, who worked for wealthy compatriots, Gianotti was also commissioned by upper class Argentine clients for whom he undertook projects in the Beaux Arts style.
Gianotti also created works of Neoclassical architecture, notably the El Mundo newspaper offices on 647 Diagonal Norte (1925), and the Schaffhausen Building (336 Reconquista St.), in 1932.