Freygeirr (Old East Norse: FrøygæiRR, Modern Swedish: Fröger) was a Viking chieftain who probably led a leidang expedition.
[3] One of the three brothers who is mentioned on the Stenkvista runestone (Sö 111), which is adorned with a heathen symbol (Mjölnir), is also called Freygeirr.
According to another theory the runes isilu represent *isi[s]la and they are to be transcribed as *ī ey-sȳsla, i.e. "in Ösel" (Saaremaa).
[6] Another runestone mentioning a Freygeirr was raised by his sons: Omeljan Pritsak remarks that Freygeir's son was named Eistr ("Estonian") and he connects the name to Freygeir's activities on the other side of the Baltic Sea.
[7] He further suggests that Freygeir's death took place during a joint Swedish-Kievan Rus' expedition against the Estonians of Saaremaa.