The 22-year-old defender has signed a three-year deal to become part of Steve Cooper's side - as they embark on a first Premier League season in 23 years - joining from French club Troyes for a reported fee of £5 million.
Biancone told the club's official website: “I am very happy to arrive at a club like Nottingham Forest after a good experience with my former club Troyes.
“I know it’s a big club, very known across Europe and I'm very excited to be joining the club, with its great fanbase and history.
“Having spoken to the head coach, it's clear that there are exciting times ahead andI'm looking to joining up with my new teammates and getting started in the Premier League.”
