Larsen is of Scandinavian origin, derived from the Old Norse 'Hjarlar' which means 'warrior'. It's a patronymic surname meaning 'son of Lars', where 'Lars' itself is a variant of the name Laurence. Larsen is also associated with places in Norway and Denmark, such as the city of Larsen in Jutland, Denmark.
The name Larsen experienced fluctuations in popularity over the years, with a notable spike in recent years.