Alessia Marcuzzi (born November 11, 1972) is an Italian actress and showgirl.

Born in Rome, she is mostly known as the host of the Italian version of Caiga Quien Caiga, Le Iene. Her credits also include various acting roles, with starring turns in Leonardo Pieraccioni's 1998 feature film Il mio West, as well as the TV shows Tequila and Bonetti (2000) and Carabinieri. Since 2006, she has presented Grande Fratello, the Italian version of Big Brother.

Marcuzzi has also modeled in the past, posing nude in calendars for the magazines Max and Panorama, respectively.

She has a son with footballer Simone Inzaghi, and is currently dating Chelsea goalkeeper Carlo Cudicini.