Masarautar Hanthawaddy wata muhimmiyar mulkin ce a ƙasar Burma (Myanmar) wadda ta wanzu a cikin lokuta daban-daban: daga 1287 ^[27] zuwa 1539 da kuma a takaice daga 1550 zuwa 1552. Sarki Wareru ya kafa shi a matsayin vassal jihar zuwa Masarautar Sukhothai da MongolYuan .daular ^[28] , daga ƙarshe ta sami 'yancin kai a cikin 1330. Duk da haka, masarautar ta kasance sako-sako da tarayya da ta ƙunshi manyan yankuna uku - Bago, Irrawaddy Delta, da Mottama - tare da iyakacin iko.Sarautar Sarki Razadarit a karshen karni na 14 da farkon karni na 15 ya kasance muhimmi wajen hada kan wadannan yankuna tare da dakile masarautar Ava zuwa arewa, wanda ke nuna wani babban matsayi a samuwar Hanthawaddy.Masarautar ta shiga zamanin zinare bayan yaƙin da Ava, ta zama ƙasa mafi wadata da ƙarfi a yankin daga 1420s zuwa 1530s.Karkashin sarakuna masu hazaka irin su Binnya Ran I, Shin Sawbu, da Dhammazedi, Hanthawaddy ya bunkasa ta fuskar tattalin arziki da al'adu.Ta zama muhimmiyar cibiyar addinin Buddah ta Theravada kuma ta kafa dangantakar kasuwanci mai karfi a fadin Tekun Indiya, tana wadatar da taskarta da kayayyakin kasashen waje kamar zinari, siliki, da kayan yaji.Ya kafa dangantaka mai karfi da Sri Lanka kuma ya karfafa gyare-gyaren da daga baya ya bazu ko'ina cikin kasar.^[29]Duk da haka, masarautar ta gamu da faduwa kwatsam a hannun daular Taungoo daga Upper Burma a tsakiyar karni na 16.Duk da yawan albarkatun da yake da ita, Hanthawaddy, a karkashin Sarki Takayutpi, ya kasa dakile kamfen din soja karkashin jagorancin Tabinshwehti da mataimakinsa Janar Bayinnaung.An ci Hanthawaddy daga ƙarshe kuma ya shiga cikin Daular Taungoo, ko da yake ya ɗan farfado a cikin 1550 bayan kisan gillar Tabinshwehti.Gadon masarautar ya rayu a tsakanin mutanen Mon, waɗanda a ƙarshe za su sake tashi don samun Masarautar Hanthawaddy da aka Maido a 1740.