Family name Opsahl (Opsahl 
) , across the world, is quite a rare cognomen. The cognomen Opsahl is habitual in Northern Europe, particularly Norway, where it is quite a common surname, Denmark, where it is a rare surname, and Estonia. In absolute terms, this name is the most popular in Norway, the United States, and Taiwan.
| VARIANT | COUNTRY |
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| Opsahl | Norway, Taiwan, Canada, United States, Denmark |
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henrik opsahl NO (b. 1835) |
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| jens j. opsahl American politician – Minnesota -House 1907-10 (District 61), US (b. 1865) |
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| johan opsahl Norwegian politician (b. 1866) |
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arve opsahl Norwegian actor, NO (b. 1921) |
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| a. m. opsahl American politician – Minnesota -House 1929-32 (District 53), US (b. 1873) |
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| søren andreas wiese opsahl Norwegian architect (1880-1968), NO (b. 1880) |
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| paul w. opsahl American politician, US (b. 1896) |
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| haakon opsahl Canadian and Norwegian chess player, CA (b. 1905) |
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nils harald opsahl Norwegian businessperson and writer, NO (b. 1959) |
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carl petter opsahl saxophonist, NO (b. 1964) |
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| ole bjarne opsahl Norwegian athletics competitor (1916-1992), NO (b. 1916) |
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bjørn opsahl Norwegian photographer, NO (b. 1968) |
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| allan opsahl American ice hockey defenceman, US (b. 1924) |
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kurt opsahl American free speech advocate, US |
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| svein-erik opsahl Norwegian actor and singer (b. 1931) |
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