Arthur Allen Jones (November 22, 1926 – August 28, 2007) was the founder of Nautilus, Inc. and MedX, Inc. and the inventor of the Nautilus exercise machines, including the Nautilus pullover, which was first sold in 1970. Jones was a pioneer in the field of physical exercise i.e. weight and strength training. He was born in Arkansas, and grew up in Seminole, Oklahoma.