Thiri Mahar Thu Mingalar Sandar Dewi (Burmese: သီရိမဟာ သုမင်္ဂလာ စန္ဒာဒေဝီ; Pali: Sīrimahā sumaṅgalā candādevī), commonly known as Magway Mibaya (Burmese: မကွေးမိဖုရား), was a senior queen consort of King Mindon during the late Konbaung dynasty.

[1] She was a daughter of King Tharrawaddy and his consort Kyapin Mibaya.

[2] Being a half-sister of King Mindon, she was promoted to a Nanzwe Mibaya[note 1] and received the appanage of Magway when he ascended the throne.

After granting permission from King Mindon, to avoid the beset caused by Hsinbyumashin faction in the palace, she was relinquished her insignia of Mibaya to leave the palace and married an ordinary merchant.

[5] This biography of a member of a Burmese royal house is a stub.