Dominique Arnold (born September 14, 1973, in Compton, California) is an American hurdling athlete.

He is tied for being the seventh fastest all-time 110 m hurdler, with a time of 12.90 s (+1.1 m/s), which was the American record from 2006 till 2010.

Arnold set that mark in Lausanne, where he beat the current world record but lost to Liu Xiang.

Competing for the Washington State Cougars track and field team, Arnold won the 1996 NCAA championships in the 110 m hurdles.

As of 11 September 2024, Arnold holds the following track records for 110 metres hurdles.