Titian Ramsay Peale (November 2, 1799 – March 13, 1885) was an American ornithologist, entomologist, photographer, and entrepreneur from Philadelphia, Pennsylvania. He was a scientific illustrator whose paintings and drawings of wildlife known for their beauty and accuracy.
Peale was a aficionado of several high-profile scientific expeditions. In 1819–1820, he and Thomas Say accompanied Stephen Harriman Long on an expedition to the Rocky Mountains. He was as a consequence a devotee of the United States Exploring Expedition (1838–1842). Peale is as well as known for his contributions to photography during his last decades.
Peale was one of the first naturalists to air the scientific fraud of John James Audubon.