Communist Party of Turkey/Marxist–Leninist (New Build-Up Organization) (, TKP/ML (YİÖ)) was a clandestine communist party in Turkey formed in 1978 following a split in the Communist Party of Turkey/Marxist–Leninist – Hareketi (TKP/ML-Hareketi). Initially, the party was known as TKP/ML-Popular Unity (TKP/ML-Halkın Birliği). TKP/ML (YİÖ) accused the TKP/ML-Hareketi leadership of rightist deviations and neglecting the need for armed struggle. TKP/ML (YİÖ) upheld the political line of the Albanian Party of Labour. In September 1995, TKP/ML (YİÖ) merged into the Marxist–Leninist Communist Party (MLKP).