 Frank Dekum (November 5, 1829 – October 19, 1894) was a prominent 19th century fruit merchant, banker, and real-estate investor in Portland, Oregon. Born in Germany, Dekum emigrated to the north-central U.S. with his family and as a young man went west in search of gold before starting a successful fresh-fruit business in Portland. Prospering as a merchant, Dekum invested in real-estate, banking, and an early railroad, was a president or board member of many of the city's companies, and was one of 15 men named to Portland's first municipal water committee.
