Lofgren

Lofgren is a surname of Scandinavian origin, most commonly found in Sweden in the form Löfgren. The name is often treated as a Swedish toponymic or patronymic surname, with the second element gren meaning branch or offshoot. In non-Swedish contexts the diacritic may be dropped, producing Lofgren.

The name is carried by various individuals across fields, particularly in the United States and Northern Europe. Notable people with the surname include Nils Lofgren, an American musician and singer who has been a longtime guitarist and keyboardist for Bruce Springsteen's E Street Band and who has also pursued a solo career. Another figure is Mike Lofgren, an American journalist and author known for his writings on politics and governance.

In medicine, Löfgren’s syndrome (also spelled Löfgren syndrome) refers to an acute presentation of sarcoidosis. It typically features fever, erythema nodosum, bilateral hilar lymphadenopathy, and arthritis, and is named after the Swedish physician who first described it in the mid-20th century.

Variants of the surname include Löfgren, Lofgren, and other diacritic forms found in Swedish and Finnish records. The name remains most strongly associated with Swedish-origin lineages and is encountered in diverse professions and public life.