Leopoldo Nobili, born in 1784 in Trassilico (Toscana) and died 5 August 1835 in Florence, was an Italian physicist who invented a number of instruments critical to investigating thermodynamics and electrochemistry.
Born Trassilico, Garfagnana, after attending the military academy at Modena he became an artillery officer. He was awarded the Légion d'honneur for his service in Napoleon's invasion of Russia.
He worked with Macedonio Melloni on the thermomultiplier, a combination of thermopile and galvanometer, before being appointed professor of physics at the Regal Museum of Physics and Natural History in Florence where he worked with Vincenzo Antinori on electromagnetic induction.