Franklin Seaver Pratt (November 1, 1829 – January 11, 1894), also known as Franklyn or Frank S.
Pratt, was an American businessman, public servant and diplomat of the Kingdom of Hawaii.
He served as the Hawaiian consul for the Pacific States of California, Nevada, Oregon, and Washington around the time of the overthrow of the Kingdom of Hawaii in 1893.
Pratt married Elizabeth Keka?aniau La?anui, a member of Hawaiian nobility, and he defended her claims to the Hawaiian crown lands during the overthrow.