Florian Munteanu (Romanian: ; born 13 October 1990), also known by his ring name Big Nasty, is a German-born Romanian actor and boxer. He is known for his role of the boxer Viktor Drago in Creed II (2018) and Creed III (2023), and Razor Fist in the superhero film Shang-Chi and the Legend of the Ten Rings (2021).

Early life
Munteanu was born in Germany to Romanian parents, who fled the Socialist Republic of Romania in 1985. His mother is a lawyer, while his father is a dermatologist and a former boxer. Munteanu grew up in Bogen, and later moved to Munich to study at the university of applied science Hochschule Mittweida. In 2014 he defended his Bachelor of Arts thesis on the "Structure and organization of the sport of boxing in Germany: associations, boxing promotion companies, federations, management and marketing in general, with a comparison to the structures implemented in the USA". He has competed in boxing in Germany under the ring name "Big Nasty".