The title compound, tetrasodium bis[tris(salicylatotitanate(IV)] undecahydrate, Na4[Ti(C7H4O3) 3]2·-11H2O, crystallizes with two titanium salicylate complex ions, four sodium ions and 11 water molecules in the asymmetric unit. One water O atom is disordered over two positions, having 0.74 (5) and 0.26 (5) occupancy. Both Ti atoms and three sodium ions adopt a distorted octahedral coordination by O atoms. The fourth sodium ion has a distorted trigonal-bipyramidal coordination by oxygen, sharing one edge with a sodium coordination octahedron. © 2005 International Union of Crystallography Printed in Great Britain - all rights reserved.