The plant kingdom is known rich source of phytochemicals and many of them possess organoleptic properties of the natural sources in which they originate. Over 4000 distinct phytochemicals are known to the mankind which have promising activity against several diseases whether metabolic, degenerative or infectious. The Family of Benzopyrones which are also known as coumarins or as 2H-1-benzopyran-2-ones, which are abundantly found in nature have displayed promising pharmacological activity. They comprise of a significant class of oxygen-containing heterocycles that are both naturally occurring and/or synthesized, and they have a typical benzopyrone framework. This review gives a broad overview of the varied pharmacological uses of metal complexes and of coumarin compounds individually as well as several metal complexes fused with the coumarin compounds. A tumultuous rise in the interest and in the publication about coumarin based metal complexes explains the powerful impact this class of medicines is having in the research field. We anticipate that this evaluation will be beneficial for the continued development of metal complexes based on coumarin in the field of medication development.