Donald Glenn Garlits (born January 14, 1932, Tampa, Florida) is considered the father of drag racing. He is known as "Big Daddy" to drag racing fans around the world. A pioneer, with the help of TC Lemmons, he perfected the design rear-engine "top fuel" dragster (notable because it put the most explosive parts of the dragster behind the driver) and was an early endorser of a full-body, fire-resistant suit. In 1964, he became the first drag racer to officially surpass 200 miles per hour; he has broken a number of other speed records, surpassing 270 miles per hour in 1986.

Garlits was the first driver to win three National Hot Rod Association national titles and three world championships, the last coming at the age of 54.

In 1997, he was inducted into the International Motorsports Hall of Fame.