The Head of the Hooch Regatta, previously known as the Head of the Chattahoochee Regatta, is a 2-day rowing regatta held annually on the first full weekend in November in Chattanooga, Tennessee. The head race is currently run downstream on a 3.1 miles (5.0 km) course on the Tennessee River. It presently ranks as one of the largest rowing regattas in the United States with over 10,000 rowers and over 2,100 boats entered for the 2014 event. 1,245 boats raced on one day in the 2012 competition, more than any other US regatta on a single day.

A head race is a time-trial competition in the sport of rowing. Head races are typically held in the fall, winter and spring seasons. These events draw many athletes as well as observers. In this form of racing, rowers race against the clock where the crew or rower completing the course in the shortest time in their age, ability and boat-class category is deemed the winner.