Family name Østrøm (Østrøm 
) , globally, is a very rare cognomen. The surname Østrøm is habitual in Northern Europe, particularly Denmark, where it is a rare surname.
| kjeld østrøm Danish rower, DK (b. 1933) |
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| ina østrøm researcher (ORCID 0000-0001-7159-2574) |
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| robin østrøm Norwegian footballer, DK |
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