Extracellular matrix (ECM) mimicry has become a promising strategy in regenerative medicine and tissue engineering, offering innovative therapeutic solutions. ECM provides a complex biochemical and structural framework that regulates cellular behavior, tissue organization, and repair processes. Mimicking the native ECM allows researchers to develop biomaterials that replicate the natural environment of tissues, enhancing therapeutic efficacy. These ECM-mimicking scaffolds promote cell adhesion, migration, proliferation, and differentiation, making them integral in tissue regeneration and wound healing. A significant application of ECM mimicry lies in creating biomaterials for the regeneration of skin, cartilage, and bone. These biomimetic materials guide cellular interactions and can be engineered to deliver growth factors or bioactive molecules in a controlled manner, supporting effective tissue repair. In chronic or complex wound environments, such as diabetic ulcers or radiation-damaged tissues, ECM-like hydrogels have shown notable potential in accelerating healing processes. ECM mimicry enables the design of 3D tumor models that simulate the tumor microenvironment, offering more accurate platforms for drug testing. These materials are being explored for targeted drug delivery systems that release therapeutic agents directly into tumors, enhancing treatment precision. ECM mimicry offers bioinspired approaches that enhance tissue regeneration, improve drug delivery, and support cutting-edge therapies, marking a significant advancement in precision medicine.