Alfredo Müller was a Franco-Italian painter and printmaker of Swiss nationality.
As a painter from Livorno, he might have belonged to the group of the Postmacchiaioli, together with Mario Puccini, Oscar Ghiglia, Plinio Nomellini, Ulvi Liegi, Giovanni Bartolena, and others, but he is a disciple of the Florentine portraitist Michele Gordigiani. As a French engraver, he was close to Francis Jourdain, Manuel Robbe, Richard Ranft, Eugène Delâtre, Théophile Steinlen.