Yaƙin Burma-Siamese na 1563-1564, wanda kuma aka sani da Yaƙin Farin Giwaye, rikici ne tsakanin Daular Toungoo ta Burma da Masarautar Ayutthaya ta Siam.Sarki Bayinnaung na Daular Toungoo ya nemi ya kawo Masarautar Ayutthaya karkashin mulkinsa, wani bangare na babban burin gina babbar daular kudu maso gabashin Asiya.Bayan da aka fara neman farar giwaye guda biyu daga Ayutthaya Sarki Maha Chakkrapat a matsayin haraji kuma aka ki yarda da shi, Bayinnaung ya mamaye Siam da dakaru mai yawa, inda ya kwace garuruwa da dama kamar Phitsanulok da Sukhothai a kan hanya.Sojojin Burma sun isa Ayutthaya kuma suka fara mamayewa na tsawon makonni, wanda ya sami taimakon kame jiragen ruwan yakin Portugal guda uku.Kawancen bai kai ga kama Ayutthaya ba, amma ya haifar da zaman lafiya a tattaunawar da aka yi kan Siam.Chakkraphat ya amince ya mai da Masarautar Ayutthaya ta zama jihar vassal na Daular Toungoo.A madadin janyewar sojojin Burma, Bayinnaung yayi garkuwa da su, ciki har da Yarima Ramesuan, da kuma wasu giwaye farar fata Siamese guda hudu.Siam ya kuma ba da harajin giwaye da azurfa kowace shekara ga Burma, yayin da ya ba su haƙƙin tattara haraji a tashar jiragen ruwa na Mergui.Yarjejeniyar ta haifar da zaman lafiya na ɗan gajeren lokaci har zuwa tawayen 1568 ta Ayutthaya.Majiyoyin Burma sun ce an mayar da Maha Chakkraphat zuwa Burma kafin a bar shi ya koma Ayutthaya a matsayin zuhudu, yayin da majiyoyin Thai suka ce ya yi murabus daga karagar mulki sannan dansa na biyu Mahinthrathirat ya hau.Yakin ya kasance wani muhimmin al'amari a cikin jerin rikice-rikice tsakanin Burma da Siamese, kuma ya danƙaɗa tasirin daular Toungoo a kan masarautar Ayutthaya na ɗan lokaci.