David Octavius Hill (1802–1870, Scotland) was a Scottish painter and early photography pioneer, best known for his collaboration with Robert Adamson in producing some of the earliest and most important photographic portraits.

Working in the 1840s, Hill and Adamson used the calotype process to create portraits and documentary images that combined artistic composition with technical innovation. Their work includes studies of fishermen, clergy, and notable figures, characterized by a sensitivity to light and human presence.

Although his photographic career was relatively brief, the body of work produced with Adamson is considered foundational in the history of photography, influencing both portraiture and documentary practices.

For collectors, Hill’s work is highly valued for its historical importance, rarity, and its role in establishing photography as an artistic medium.