This chapter offers a comprehensive exploration of bioinspired and biomimetic hydrogels and their wide-ranging applications in the field of regenerative medicine. The introductory section meticulously defines hydrogels and elucidates their critical design parameters. It subsequently delves into the intricacies of bioinspired strategies employed in engineering hydrogels, with a focus on achieving properties that closely emulate those found in natural tissues. The succeeding sections provide in-depth insights into how biopolymers, such as proteins and polysaccharides, can be utilized to form hydrogels with finely adjustable mechanical and biophysical properties. Additionally, synthetic polymers are examined for their capacity to be customized with specific functional groups and degradation rates, enhancing their versatility in various applications. The discussion then pivots to essential hydrogel characteristics relevant to regenerative medicine, encompassing aspects such as porosity, swelling, stiffness, and degradability. The narrative further explores advanced techniques for designing bioinspired 3D microenvironments, effectively mimicking the intricacies of the extracellular matrix. This includes a detailed examination of methodologies for controlling hydrogel stiffness, optimizing ligand presentation, and strategically patterning spatial cues of both biochemical and biophysical nature. In conclusion, the chapter addresses current challenges and outlines future directions within the realm of regenerative medicine, emphasizing the ongoing and evolving utilization of bioinspired and biomimetic hydrogels in this dynamic field.