Walkley Heights is a suburb of Adelaide, South Australia. The suburb is located on land formerly comprising the prison farm for Yatala Labour Prison, and includes fifty-five hectares of land formerly owned by R. M. Williams which was compulsorily acquired during the time of former State Premier Sir Thomas Playford. The suburb (and one adjacent main road) is named after John Walkley, an early pioneer in South Australia The suburb had a population, in 2001, of only 713 increasing to 3,497 by 2016.