Ross L. Chastain is an American professional stock car racing driver.
He is the older brother of NASCAR Camping World Truck Series driver Chad Chastain.
He is nicknamed The Watermelon Man, or simply Melon Man, due to his family's history as watermelon farmers, which he also participates in; whenever he celebrates race wins, he smashes a watermelon to the ground in Victory Lane.
Chastain started racing at the age of twelve, his interest piqued by his father's hobby racing and other kids his age racing.
A native of Alva, Florida, Chastain was a watermelon farmer on his family's farm until he turned thirteen.