Caleffi is an Italian surname, either originating from the name Caleb or from the name of the city of Aleppo, Syria (), or alternatively from or . Notable people with the name include:
Giovanna Berneri (; 1897–1962), Italian educationalist and libertarian anarchist Sonya Caleffi (born 1970), Italian serial killer
See also Calef Caleff Galeffi
References