Lignin comprises highly aromatic less valuable biomass waste that could be executed to make materials, fuels, and chemicals. Adsorbent materials derived from lignin have garnered a lot of attention over the past decade. To date, merely 4–6% of the globally available lignin is accessed and utilized. Nonetheless, there are still plenty of chances for development of new materials. In particular, adsorbents procured from lignin confer a positive impact on the environment due to its stability, biocompatible, and abundance in the realm of plants. This book chapter discusses various lignin-based adsorbents. Therefore, emerging perspectives underscore the potential of green chemistry methodologies in the development of lignin-based adsorbents, emphasizing its capacity to create value-added processes.