Son of Olaf
Olsen is a patronymic surname of Scandinavian origin, specifically meaning 'son of Olaf'. The root name Olaf is derived from the Old Norse name Áleifr, which combines elements meaning 'ancestor' and 'descendant' or 'heir'.
Less common today
Olsen isn't in the latest US Top 1000. It last peaked at #2,179 in 2025.
US births per 5-year period, 1990–present (SSA data).
New Zealand rugby league legend
Filipino professional basketball player and coach
