The world’s energy intake is going to enhance in the coming time as standards of living continue to improve worldwide. The world will continue to depend primarily on fossil fuels to satisfy their energy needs in the foreseeable future resulting in an even further increase in carbon dioxide (CO2) emissions unless efforts are made to curtail them. CO2 capture, utilization, and storage (CCUS) are promising techniques to reduce CO2 emissions. In this technique, CO2 is captured from various sources such as power plants and steel plants which is then either utilized to make value-added chemicals or stored in the subsurface. Among various techniques available, CO2 capture using solid adsorbents is a promising technique. An important challenge relating to the adsorbents is to find materials that not only have high adsorption capacity and high selectivity for CO2 but also are low-cost and environmentally friendly. Among various adsorbent materials currently available, biochar is a promising option for CO2 capture because of its high porosity, low cost, and ease of surface structure modification. Several systems have been employed to enhance surface chemistry of adsorbent to produce promising adsorbing materials for CO2 adsorption. Consequently, superior CO2 adsorption is demonstrated by tailored biochar through increased physisorption. Additionally, their easy regeneration and high cyclic capture efficiency reduce the overall cost of CO2 adsorption. This chapter discusses various methods to develop engineered biochar, variables influencing the capability of pristine biochar to capture CO2, and challenges relating to engineered biochar as an adsorbent material for CO2 capture.