Hansen
{{Infobox royal house |surname = Hansen |native_name = |native_name_lang = Oslanburgan |other_name = |coat of arms = Coat of arms of Finland.svg |image_size = |alt = |caption = The Coat of Arms of House Hansen |type = Royal house |country = Arch Kingdom of Oslanburg |estates = |parent house = |titles = Various |styles = |founded = 16 Marth 834 |founder = Count Ulricht I |final ruler = |current head = Arch King [[Aerin II] |dissolution = |deposition = |ethnicity = Oslanic |cadet branches = Gruethen-Hansen |notes = }}
The House of Hansen is the ruling house of the Arch Kingdom of Oslanburg and its overseas possessions. It was founded by Ulricht I, the first Count of Langeland.