The 39-year-old "Lakers" forward, who will participate in his fourth Olympic Games, will be the flag bearer of the American delegation for the first time.
The opening ceremony of OG-2024 will take place on Friday.
US flag bearers are chosen by a vote of Olympic athletes who will compete in the Games.
James previously helped the USA Basketball team win gold medals in 2008 and 2012. 2004, he won a bronze medal in his first Olympic Games at 19.
