Jadarion Johntavian better known as J. D. Harmon (born January 18, 1994) is a former American football safety.

He signed with the Cleveland Browns as an undrafted free agent in 2017.

[1] He played college football at Kentucky.

Harmon signed with the Cleveland Browns as an undrafted free agent on May 4, 2017.

[2] He was waived on 1 September 2017 during roster cutdowns.