Dicalcium phosphate (DCP) is used as an adsorbent. Two dicalcium phosphate chitosan composites (DCP-CS1) and (DCP-CS2) with different ratios of chitosan were prepared and used as adsorbents for removal of Fe²⁺ from wastewater. Different techniques were used for characterization the adsorbent compounds in the absence and presence Fe²⁺ such as X-ray diffraction analysis (XRD), Fourier Transform Infra-red spectroscopy (FTIR), Scanning electron microscope together with energy dispersive X-ray (SEM with EDX). The findings revealed that DCP crystals were mineralized in the presence of CS, and this confirmed that CS has a controlling role in the morphologies of DCP. Batch studies were conducted at initial Fe²⁺ ions concentration range of 50-250 mg/L,100 mg of adsorbent dose, pH range centered around 4.9, and 70-minutes contact time at 25.00 ± 1.00 ^oC. The adsorption kinetics was well-described by the pseudo-second-order kinetic, the intraparticle diffusion model was not a rate-limiting step, and the adsorption isotherms were fitted with Langmuir and Freundlich models. The maximal adsorption capacities (qm) for (DCP), (DCP-CS1) and (DCP-CS2) were 13.38, 14.96 and 19.79 mg g^-1 for Fe²⁺ ions removal, respectively. Based on these findings, it can be concluded that DCP/CS composites can adsorb Fe²⁺ ions from aqueous solutions successfully due to functional groups such as phosphate, hydroxyl, and amino groups in their structure.