Ten species of Acartia were recorded in South Central Coastal waters of Vietnam, in which, 2 species, Acartia sinjiensis and A. tsuensis are newly recorded for zooplankton fauna of Vietnam. Two other species, A. amhoinensis and A. bispinosa were listed in previous works without any description and illustration. In this work, these four species are described and illustrated in terms of biology, morphology and their distribution. Identification key of 10 recorded species is also built based on morphological characters.