Crystals of lead oxybromidc Pb₇0₄(OH)₄Br₂ have been synthesized with use of hydrothcrmal method. Its structure has been studied by the single-crystal structure analysis. The compound is monoclinic, CI 12, a = 5.852 (4), b = 13.452 (7), с = 19.673 (9) А, у = 90.04 (2)°, V= 1548.7 (15) A³. The structure has been solved by direct methods and refined to R_i = 0.1138 for 1847 observed unique reflections. There are.seven positions for lead atoms in the Pb₇0₄(0H)₄Br₂ structure. Coordination polyhcdra of Pb²⁺ cations arc very irregular due to stereo-chemical activity of unshared electrons of the 6s² pair. Oxygen atoms are tetrahedrally coordinated by lead atoms, which results in formation of OPb₄ oxoccntcred tetrahedra. The Pb₇0₄(OH)₄Br₂ crystal structure is based on [0₂Pb