Cornel Dinu (born 2 August 1948) is a retired Romanian football defender.
He was born in Târgovişte and debuted in Divizia A with Dinamo Bucureşti in 1966. He remained with Dinamo throughout his career, winning six league titles and two cup titles.
Dinu got 75 caps and 7 goals for the Romanian national team between 1968 and 1981. He represented his country at the 1970 FIFA World Cup.