Cognomen Giørtz (Giørtz 
) , around the world, is a very rare surname. The family name Giørtz is habitual in Northern Europe, particularly Norway, where it is a rare surname, and Denmark.
| christian giørtz DK (b. 1790) |
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ole henrik giørtz Jazz pianist, NO (b. 1955) |
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anne-marie giørtz Norwegian jazz vocalist and composer, SE (b. 1958) |
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| fridtjov sæverud giørtz (b. 1921) |
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