Franck Goddio (born 1947 in Casablanca, Morocco) is a French underwater archaeologist who, in 2000, discovered the city of Thonis-Heracleion 7 km off the Egyptian shore in Aboukir Bay. He led the excavation of the submerged site of Eastern Canopus and of Antirhodos in the ancient harbour of Alexandria (Portus Magnus). He has also excavated ships in the waters of the Philippines, significantly the Spanish Galleon San Diego.
Goddio received degrees in mathematics and statistics from the École Nationale de la Statistique et de l'Administration Économique in Paris. He was employed as an advisor to national and international organizations and various governments for over 15 years.
In the early 1980s he decided to focus on underwater archaeology. In 1987 he founded the Institut Européen d'archéologie Sous-Marine (IEASM) in Paris.
In his work in detecting and recovering ancient shipwrecks and searching for the remains of sunken cities, Goddio developed a systematic approach to underwater archaeology. He has found or excavated over a dozen sunken ships of historic importance, which had been resting on the ocean bed for hundreds of years. Among them are junks dating from the 11th to the 15th century, the Spanish galleon San Diego and San José (1694), Napoleon Bonaparte's flagship Orient and two East Indiamen: Griffin (1761) and Royal Captain, lost in 1773.
Goddio adheres to strict archaeological standards during the exploration and excavation phases, and closely cooperates with national and local authorities, leading archaeological experts and institutions. In 2003, in co-operation with Oxford University, he helped to found the Oxford Centre for Maritime Archaeology. In 2009 he was appointed a Senior Visiting Lecturer in the School of Archaeology at Oxford University. In the same year he received the French National Order of the Legion of Honour (Légion d´Honneur).