Joshua D. Miller, born on April 2, 1981, is an American politician serving as a member of the Arkansas House of Representatives for the 66th district. He was elected in November 2012 and assumed office on January 14, 2013.

Miller was born and raised in Heber Springs, Arkansas. He attended Arkansas Tech University and the University of Central Arkansas before earning an associate degree in political science from the Heber Springs campus of Arkansas State University-Beebe.

Before his political career, Miller worked as the head cook and bottle washer at MDM Investments. He later became a property investor and manager. His political journey began with his election to the Arkansas House of Representatives in November 2012, and he assumed office on January 14, 2013.

In his personal life, Miller is married. Since suffering a spinal cord injury in 2003, he has used a motorized wheelchair.