ABSTRACT: The adsorption behavior of bromophenol blue has been studied on different adsorbents for the purpose of determining the best remover for this dye. The adsorbents were activated carbon (AC), K10 montmorillonite (MMT), acidic sawdust (ASD) and basic sawdust (BSD). The influence of various experimental parameters including time of reaction, concentration and pH of solution on the adsorption of (BPB) on the four adsorbents was investigated. It was found through this study that the best adsorbent for this dye is activated carbon, and since this dye is anionic, the pH has a direct effect on its adsorption process on different surfaces. The dye prefers a positively charged surface, therefore working at low pH is the favored choice. The tendency of the surface to gain negative charge increases as the pH of the solution rises resulting in a decrease in dye adsorption due to a decrease in the electrostatic force present on the adsorbent's surface. The amounts of dye adsorbed were calculated by using UV-Vis spectroscopy.