In general, this paper: i) reviews some works that have implemented baffles in the settling process for the treatment of water/wastewater; ii) draws relations among the reviewed works to provide a thorough understanding of the effects of baffle utilization on settling tanks (ST). Accordingly, a number of recommendations in the case of using baffles in settling tanks have been derived and introduced. The reviewed papers related to the analysis of settling performance using baffles in settling tanks, and these vary in terms of their approach and models used for research. The implementation of baffles in the reviewed papers also varies depending on the type, location, position, and height, as well as other parameters by which the role of baffles is examined in sedimentation. Utilization of baffles in ST to improve efficiency is the purpose of all reviewed papers. From this study, some prospective topics are recommended when using baffles in ST. To increase the performance of ST, the configuration, location, and position of the baffle in ST should be considered. Furthermore, the uniformity of flow and concentration of suspended solids should not be overlooked either.