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The molecular title compound, [MnCl2(C5H5N)2(H2O)2], lies about an inversion centre. The MnII atom is in an all-trans octahedral environment defined by two water molecules, two chloride anions and two pyridine ligands. An intermolecular hydrogen-bonding interaction between a water molecule and a chloride anion bonded to an adjacent MnII atom generates an eight-membered ring. The crystal packing exhibits two intermolecular π–π stacking interactions between the aromatic rings, with centroid–centroid distances of 3.485 (12) and 3.532 (12) Å.