May Hnin Htapi (Burmese: မေနှင်းထပီ, Burmese pronunciation: [mè n̥ɪ́ɴ tʰəpì]) was the chief queen consort of King Saw O of Martaban, and a senior queen consort of King Saw Zein of Martaban.
At Martaban, she became the chief queen, and bore two children, a son, Saw E and a daughter, May Hnin Aw Kanya.
But the successor Saw Zein immediately raised his sister-in-law as his second ranked queen at his accession.
But Htapi's stint as the queen mother lasted just 49 days as her son too was assassinated by Sanda Min Hla.
According to the Razadarit Ayedawbon chronicle, the king of Sukhothai was angered by the death of Saw E, and sent an invasion force.