Ranmasu Uyana is a park in Sri Lanka containing the ancient Magul Uyana (Royal Gardens). It is situated close to Isurumuni Vihara and Tissa Wewa in the ancient sacred city of Anuradhapura, Sri Lanka. It sits on approximately 40 acres (16 ha), and is a noted example of Sri Lankan garden architecture of the pre-Christian era. According to an inscription found in Vessagiriya, the water to the park was supplied by Tessa Wewa and then released to rice fields around Isurumuni Vihara.In the park are various ponds, and the remains of small buildings. According to legend it is believed that Prince Saliya met Asokamala in this garden.