Saqsiz Mirza (died 1464/65) was the Dughlat amir of Yarkand from 1457/58 until his death.
Choosing to establish himself in Yarkand, he gave Kashgar and Yengisar to his brother Muhammad Haidar Mirza and the latter's mother Urun Sultan Khanim.
As a result, Muhammad Haidar fled to Aksu, which was under the control of Dost Muhammad, while Saqsiz regained control of Kashgar.
He soon died of his wounds; upon his death Dost Muhammad came down to Yarkand and demanded Saniz Mirza's widow named Jamal Agha, whom he married upon her surrender.
He also received the latter's children (sons, Mirza Abu Bakr and Omar Mirza, and daughter Khan Sultan Khanum), whom he brought back with him to Aksu.