Hans Bertil Ljungberg (born 26 March 1948) is a retired Swedish swimmer who won a bronze medal at the 1970 European Aquatics Championships.
He competed at the 1968 and 1972 Summer Olympics in eight freestyle, medley and backstroke events; his best achievement was the fourth place in the 4 × 200 m freestyle relay in 1972.In the 1960s he studied at the California State University, Long Beach.
In the 2000s, he was still competing in the masters category.