In Frans G. Bengtsson’s The Long Ships, the protagonist Orm’s surname is Tosteson.
The novel, first published in Swedish in two parts from 1941 to 1945, follows Orm Tosteson through Viking raids, captivity, travel, warfare, and political change. Its setting spans the late tenth and early eleventh centuries, blending historical figures and events with comic adventure.
Bengtsson’s treatment is not a direct retelling of a single Norse myth, but it draws on saga traditions, Viking history, medieval religion, and the cultural world that also produced Norse literary traditions. Orm encounters both pagan and Christian communities as Scandinavian society changes.
The patronymic-style surname can be confused with names formed from the father’s name in other Viking narratives. “Tosteson” identifies Orm as Toste’s son in the English title and translations; it is not a surname such as Haraldsson or Sigurdsson.