Innwa (Burmese: အင်းဝမြို့; MLCTS: ang: wa. mrui.; formerly Ava, and sometimes Ainwa) is a city in the Mandalay Division of Burma (Myanmar), situated just to the south of Amarapura on the Ayeyarwady River. Its formal title is Ratanapura (ရတနာပူရ; Pali: ऋअतनपुर), which means City of Gems in Pali. The name Innwa means mouth of the lake, which comes from in (အင်း), meaning lake, and wa (ဝ), which means mouth. Known as Ava to the British and A-wa (ဗ-တေ; mouth) in Burmese, it evolved to its modern name Innwa.