Isang Ugat, Isang Dugo (Filipino: "One Vein, One Blood") is the eighth studio album by Filipino rock band Rivermaya, released on October 10, 2006, through Viva Records.

Except for original track "Isang Bandila (One Flag)", it is a covers album featuring songs by Filipino artists in the 1980s, including The Jerks, Joey Ayala, and Wuds.

Isang Ugat, Isang Dugo was the final album recorded featuring Rico Blanco as founding member and songwriter.

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