Osen

Osen can be

People
Erwin Dom Osen (1891–1970), an Austrian mime artist
Otto Osen (1882–1950), a Norwegian long-distance runner

Places
Bulgaria

Osen, Silistra Province, a village in the Glavinitsa municipality, Silistra Province
Osen, Targovishte Province, a village in the Targovishte municipality, Targovishte Province
Osen, Vratsa Province, a village in the Krivodol municipality, Vratsa Province

Norway
Osen, Norway, a municipality in Trøndelag
Nordre Osen, a village in Åmot municipality in Hedmark

Russia
Osen (river), a tributary of the Mologa