Last name Herstad (Herstad 
) , across the world, is a rare surname. The last name Herstad is habitual in Northern Europe, particularly Norway, where it is quite a common surname, Denmark, where it is a rare surname, and Sweden. In absolute terms, it is the most numerous in Norway, the United States, and Sweden.
| VARIANT | COUNTRY |
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| Herstad | Norway, Canada, Sweden, United States, Denmark |
| i. b. herstad (b. 1835) |
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| torolv herstad Norwegian tennis player (b. 1899) |
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| sverre j. herstad Norwegian politician (1905-1999) (b. 1905) |
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| norvald herstad Norwegian athletics competitor (1930-2017), NO (b. 1930) |
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| john herstad Norwegian historian, NO (b. 1936) |
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| harry herstad Norwegian politician (1946-2017), NO (b. 1946) |
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| jan herstad (b. 1958) |
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| svein olav herstad Jazz pianist, NO (b. 1969) |
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| kristin marie valand herstad researcher |
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| kyle herstad researcher |
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| björn herstad SE (b. 1980) |
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| tove karin herstad |
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