Alessandro Cortini (born 24 May 1976) is an Italian musician best known for his work with modular synthesizers, and being the keyboard, guitar, and bass player in the American industrial band Nine Inch Nails. As a member of Nine Inch Nails, Cortini is the first Italian inducted into the Rock and Roll Hall of Fame in 2020.

As an instrument maker, Cortini created a patchable analogue synth instrument called Strega through Make Noise.