Nge Mangsham Taktsab (Tibetan: རྔེགས་མང་ཞམ་སྟག་ཚབ, Wylie: rngegs mang zham stag tshap, died 727) was a general of Tibetan Empire.
According to Tibetan Annals, Mangsham was appointed as the Lönchen in 725 after Shang Trisumje's death. He was ordered to convene a spring coalition in 726, and levied taxes on people who were directly subordinate to the emperor. He died in the next year and succeeded by another general, We Tadra Khonglo.