Aruna Ratanagiri (Harnham Buddhist Monastery) with its adjacent guest facility, Kusala House, is located in Northumberland, England. The current abbot Ajahn Munindo (aka Uppanno Bhikkhu) received upasampada under Ajahn Chah in 1976. Monks from Harnham regularly visit meditation groups in northern England and Scotland. Furthermore, Harnham is the home of Aruno Publications and the monastery's adjacent guest facility holds retreats throughout most of the year.
Aruna Ratanagiri is an affiliated Branch Monastery.