Lorentzen is a Norwegian family of Danish ancestry whose members have been notable as shipping magnates and industrialists over several centuries.
The industrialist Erling Lorentzen was married to Princess Ragnhild of Norway (known as Princess Ragnhild, Mrs. Lorentzen after her marriage), the eldest daughter of King Olav V of Norway.
Among its members are shipowner Erik Finn Lorentzen and industrialist Erling Lorentzen, who was married to Princess Ragnhild of Norway (known as Princess Ragnhild, Mrs. Lorentzen after her marriage), the eldest daughter of King Olav V of Norway.
The family is descended from Hans Zachariassen (died ca.
[1][2] A branch of the family uses the double surname Bie-Lorentzen, with or without a hyphen.