Renaldo Nehemiah is a retired American track and field athlete who specialized in the 110 m hurdles. He was ranked number one in the world for four straight years, and is a former world record holder. Nehemiah is the first man to run the event in under 13 seconds. Nehemiah also played pro football in the National Football League (NFL) as a wide receiver for the San Francisco 49ers from 1982 to 1985, before returning to track and field athletics from 1986 to 1991. After retiring from competition, he has worked in sports management.

The 110 metres hurdles, or 110-metre hurdles, is a hurdling track and field event for men. It is included in the athletics programme at the Summer Olympic Games. The female counterpart is the 100 metres hurdles. As part of a racing event, ten hurdles of 42 inches (106.7 cm) in height are evenly spaced along a straight course of 110 metres. They are positioned so that they will fall over if bumped into by the runner. Fallen hurdles do not carry a fixed time penalty for the runners, but they have a significant pull-over weight which slows down the run. Like the 100 metres sprint, the 110 metres hurdles begins in the starting blocks.