Zein Pun (Burmese: ဇိတ်ပွန် [zeɪʔ pʊ̀ɴ]; 1295–1330) was the fifth king of the Hanthawaddy Kingdom in Burma. A court official at Martaban Palace, he seized the throne for seven days in 1330 after the death of King Saw Zein in the battlefield of Prome. Zein Pun's reign was short. Saw Zein's chief queen Sanda Min Hla organized a putsch, and handed the throne to Saw E, son of Saw O and the princess of Sukhothai.