Johan Rönnby is a Professor of Maritime Archaeology at Södertörn University and professional diver. Head of the Maritime Archaeological Research Institute, MARIS at Södertörn University.
PhD from Stockholm University 1995. Senior curator/marine archaeologist at the National Heritage Board, Stockholm, 1994-97. Teacher and researcher at Södertörn University since 1997. STINT fellow and visiting professor at Skidmore College, USA, 2005. External examinor at Southampton University 2001-2005. Associate Professor (docent) in maritime archeology at Helsinki University since 2008.
His research and publications has focused on shipwrecks in the Baltic Sea, but has also covered Viking Age lake dwellings, harbors and submerged prehistoric landscapes, coastal landscapes and man’s cultural and social interaction with water.