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Po Klan Thu (died 1828) was the ruler of Champa from 1822 to 1828. ^[1] His Vietnamese name was Nguyễn Văn Vĩnh (阮文永).

In 1807, Po Klan Thu was appointed as the viceroy, or the deputy ruler of Champa. ^[2] Champa ruler Po Saong Nyung Ceng (Nguyễn Văn Chấn) died in 1822. Lê Văn Duyệt, the viceroy of Cochinchina, proposed to let Po Phaok The (Nguyễn Văn Thừa) succeed; however, Emperor Minh Mạng wanted Bait Lan be the new ruler. At such a sensitive time, Ja Lidong revolted. Reluctantly, Minh Mạng installed Po Klan Thu as the new ruler and sent him back to Champa. ^[3] Po Phaok Thu was appointed as his viceroy, or the deputy ruler. ^[2]

Po Klan Thu put down the rebellion of Kai Nduai Bait in 1826. ^[1] He died in 1828. ^[3]