Norman Grimes (born January 6, 1998) is an American track and field athlete, who specializes in the hurdles. At the 2015 World Youth Championships in Cali, Colombia, he won the gold medal in the 400 m hurdles. He recorded the second-fastest youth time in history, behind the world youth record held by William Wynne. A few weeks later, Grimes won the 400 m hurdles at the Pan American Junior Athletics Championships in Edmonton, Alberta, Canada.