Isaac Nnamdi Okoro (born January 26, 2001) is an American professional basketball player for the Cleveland Cavaliers of the National Basketball Association (NBA). He played college basketball for the Auburn Tigers. Listed at 6 feet 6 inches (1.98 m) and 225 pounds (102 kg), he plays the small forward position.

Okoro played basketball for McEachern High School in Georgia for four years, helping his team win the state championship and achieve national success in his senior season. He was considered a five-star recruit by Rivals and a four-star recruit by 247Sports and ESPN. After his freshman college season at Auburn, he was named to the second team All-SEC.

Okoro was drafted in the 1st round as the 5th overall selection by the Cleveland Cavaliers in the 2020 NBA Draft.