| Surname | Individuals |
|---|---|
|
Jacobsdatter
|
9 |
|
Jacobsen
|
21 |
|
Jacquerot
|
1 |
|
Jakobsen
|
3 |
|
Jensdatter
|
19 |
|
Jensdóttir
|
1 |
|
Jensen
|
82 |
|
Jenses
|
1 |
|
Jeppesen
|
1 |
|
Jepsen
|
4 |
|
Jesdatter
|
4 |
|
Jespersen
|
2 |
|
Jessen
|
8 |
|
Joensen
|
1 |
|
Johannessen
|
3 |
|
Johansen
|
8 |
|
Johansson
|
1 |
|
Johnsen
|
2 |
|
Jón
|
1 |
|
Jonsdotter
|
3 |
|
Jónsdóttir
|
77 |
|
Jónsson
|
99 |
|
Jønsson
|
1 |
|
Jørgensdatter
|
2 |
|
Jørgensen
|
30 |
|
Jörinsson
|
1 |
|
Jörundarson
|
1 |
|
Juel
|
1 |
|
Juhl
|
3 |
