Jacques Inaudi (October 15, 1867 - November 10, 1950) was an Italian calculating prodigy.

He was born in Onorato , Piedmont, Italy. As a child he was a sheepherder but showed aptitude for mental calculations. Inaudi's abilities attracted interest of showmen and he toured around the world.

French scientists like Charcot investigated his abilities. Inaudi repeated the numbers he was given before he begun his mental calculations.