RISK (born Kelly Graval), also known as RISKY, is a Los Angeles–based graffiti writer and contemporary artist often credited as a founder of the West Coast graffiti scene. In the 1980s, he was one of the first graffiti writers in Southern California to paint freight trains, and he pioneered writing on "heavens", or freeway overpasses. He took his graffiti into the gallery with the launch of the Third Rail series of art shows, and later created a line of graffiti-inspired clothing. In 2017, RISK was knighted by the Medici Family.