Taraldsen is a Norwegian surname. It is a patronymic surname, meaning it originated from a given name. In this case, it is derived from the name Tarald, a Norse personal name. The suffix "-sen" indicates "son of," so Taraldsen literally means "son of Tarald."
The surname is common in Norway, particularly in regions with strong historical Norse influence. Like many Scandinavian surnames ending in "-sen," its prevalence makes it challenging to trace specific lineages without detailed genealogical records. Variants of the name may exist due to regional dialectal differences or variations in spelling over time.