David Grief is a fictional character created by author Jack London. He is the protagonist in several of London's adventure stories, primarily set in the South Pacific. Grief is depicted as a rugged and resourceful man, often navigating the challenges of life in a harsh and unforgiving environment. In the stories, David Grief is involved in various adventures, including treasure hunting and encounters with pirates. His character embodies themes of survival, resilience, and the struggle against nature, reflecting London's own experiences and interests in exploration and adventure.