Surname Ketilsson (Ketilsson 
) , all around the world, is a very rare cognomen. The surname Ketilsson is characteristic of Iceland, where it is quite a common surname, Norway, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Ketilsson is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ketilsson | United States, Spain, Iceland, Norway |
| helgi bjóla ketilsson 848- (b. 848) |
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| björn austræni ketilsson 850-890, IS (b. 850) |
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| storólfur ketilsson (b. 869) |
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| þorgrímur ketilsson (b. 980) |
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| þorleifur hreimur ketilsson (b. 1222) |
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| magnús ketilsson Icelandic publisher and scribe, IS (b. 1732) |
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| natan ketilsson (b. 1792) |
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| guðjón ketilsson (b. 1956) |
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| andor ketilsson Roman Catholic bishop |
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| guojón ketilsson |
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| jon ketilsson |
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| reistur ketilsson |
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| vífill ketilsson |
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