Nine species of cladocerans are newly recorded from the Ciénaga Grande de Santa Marta Magdalena Department and of these, five of them are new to Colombia (Dunhevedia crassa, Simocephalus vetuloides, Ilyocriptus paranaensis paranaensis, Nicsmirnovius fitzpatricki and Coronatella monacantha). The known number of Cladocera (45 species) in Ciénaga Grande de Santa Marta represents about the half of reported species in Colombia. Brief descriptions and illustrations of species, including distribution, are given.