Chad Senior (born December 27, 1974) is an American Olympic modern pentathlete.

During each year at North Fort Myers High School he earned varsity letters in track, cross country and swimming.

Senior graduated in 1997 and joined the United States Army's Elite Athlete program so that he could train for the Olympics.

That same year, Senior had first, third and fourth place finishes at World Cup events.

As of 2018, Senior serves as a Lt Col in the U.S. Air Force, specifically a Combat Rescue Officer – a specialist who goes into "austere and non-permissive environments" to save downed air crew members.