Last name Lysø (Lysø 
) , all over the world, is a very rare cognomen. The last name Lysø is habitual in Norway, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lysø | Norway, United States |
|
nils kristian lysø Norwegian politician (1905–1977), NO (b. 1905) |
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| arvid lysø Norwegian teacher, agronomist (b. 1926) |
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| ole lysø Norwegian politician (b. 1940) |
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sindre lysø Norwegian politician, NO (b. 1995) |
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