Derrick "DJ" O'Hara Johnson (born November 22, 1982 in Waco, Texas) is an American football linebacker for the Kansas City Chiefs of the National Football League. He was drafted by the Chiefs in the first round (15th overall) of the 2005 NFL Draft. He played collegiately at Texas.
Johnson attended Waco High School in Texas. He registered 170 tackles (103 solo), 21.0 stops for loss, 6.0 sacks, five forced fumbles and two INTs, including one for a TD as a senior. Once he produced a career-high 30 tackles and four forced fumbles in a single game.
Johnson earned Parade All-America and first-team All-Texas Class 5A honors following both his junior and senior seasons.