de Grey is a surname most commonly associated with Aubrey de Grey, a biomedical gerontologist known for his research on aging and longevity. He is the co-founder of the SENS Research Foundation, which focuses on developing therapies to combat age-related diseases and promote healthy lifespan extension. The term "de Grey" can also refer to various historical figures and places, particularly in the context of British nobility. The de Grey family has a long lineage, with connections to the English aristocracy, including titles such as the Earl de Grey.