This chapter focuses on alkylresorcinols (AR) and cashew nut shell liquid (CNSL) as bio‐based solvents from agricultural produce and waste. It highlights the possible biological sources for bio‐based aromatics, such as cereals and CNS wastes, and the techniques for their extraction. The chapter also introduces the possible potential applications of these extracts as solvents or reagents in the production of functional or platform chemicals. The competitive advantage of utilizing agricultural by‐products or wastes, such as cereal bran and CNSs, as renewable bio‐resources for the production of aromatic bio‐based solvents is manifested in non‐interference with food supply and their contributions towards waste minimization. Thus, this chapter centres its discussion onaromatic bio‐based solvents from agricultural by‐products and waste materials, and emphases on resorcinolic lipids and CNSL. Basically, there are three methods used to extract CNSL from the shells: solvent extraction, thermal extraction and mechanical extraction