Last name Lauritzsen (Lauritzsen 
) , all around the world, is a rare family name. The cognomen Lauritzsen is habitual in Norway, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Lauritzsen | Norway, United States, United Kingdom |
Lauridsen, Lauritsen, Lauritsson, and Lauritzen
| halvor fossum lauritzsen Norwegian aid worker, NO (b. 1959) |
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| grete fossum lauritzsen researcher |
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| grete f lauritzsen researcher |
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