1‐Dimensional halocuprate(I) chains [(Cu2X4)2–]n (= [(CuX2)–]n, X = Cl, Br, I) have been synthesized under hydrothermal conditions through in‐situ reduction of CuIIX2 with FeIIX2 or as phase pure materials through comproportionation of CuIIX2 or CuIIO with Cu0 metal in the presence of the respective aqueous hydrogen halide HX and a templating amine. Chains of trans edge‐sharing tetrahedra are obtained with piperazinium or ethylenediammonium dications, while the 4,4′‐bipyridinium dication gave chains of cis edge‐sharing tetrahedra. Two monoprotonated piperazinium groups act as cationic ligands (Hpipz+) towards copper atoms in a molecular [Cu4(μ‐Br6)(Hpipz)2] cluster. Electrical crystal conductivities of the halocuprate [(Cu2X4)2–]n (= [(CuX2)–]n) chains (X = Cl, Br, I) are around 10–8 S·cm–1 at room temperature.