De'Vion Harmon (born January 22, 2001) is an American professional basketball player for the Indiana Mad Ants of the NBA G League.

[1] As a freshman, he averaged 14.1 points, 4.7 rebounds, 4.6 assists and 1.6 steals per game to help his team to a 30–3 record, a District 6-6A title and the area finals.

As a sophomore, he averaged 18.7 points, 4.2 rebounds, 4.8 assists and 1.5 steals per game to help his team to a 25–6 record, a District 6-6A title and the Bi-District finals.

[10] After going undrafted in the 2023 NBA draft, Harmon was named to the opening night roster for the Westchester Knicks on November 9, 2023.

[12] Harmon represented the United States at the 2017 FIBA Under-16 Americas Championship, where he averaged 11.8 points and helped his team win a gold medal.