| Surname | Individuals |
|---|---|
|
O'Brien
|
5 |
|
O'Connor
|
1 |
|
O'Donnell
|
1 |
|
O'Hare
Dopita O'Hare |
7 1 8 |
|
O'Malley
|
2 |
|
O'Neal
|
1 |
|
O'Neil
|
11 |
|
O'Neill
|
3 |
|
O'Rourk
|
3 |
|
Oase
|
9 |
|
Obbarius
|
1 |
|
Öberg
|
17 |
|
Obuchowski
|
6 |
|
Ocheltree
|
7 |
|
Oehme
|
3 |
|
Ogden
|
1 |
|
Ogle
|
1 |
|
Ögren
|
1 |
|
Öhlund
|
2 |
|
Öhman
|
6 |
|
Okimura
|
1 |
|
Olausson
|
1 |
|
Oleson
|
6 |
|
Olheiser
|
2 |
|
Olin
|
1 |
|
Oliphant
|
1 |
|
Oliver
|
2 |
|
Oliveria
|
1 |
|
Ollenburger
|
6 |
|
Olmstead
|
2 |
|
Olofsdotter Falck
Olofsdotter Olofsdotter Tjernquist Olofsdotter Nyman |
1 11 1 1 14 |
|
Olofsson Wiklund
Olofsson Olofsson Åström Olofsson Bergman |
2 19 1 1 23 |
|
Olovsson
|
3 |
|
Olsdotter Tjernqvist
Olsdotter Nyman |
1 1 2 |
|
Olsen
Knudsen Olsen |
11 1 12 |
|
Olson
Olson Rogde Olson Hilmo |
11 1 1 13 |
|
Olsson
|
18 |
|
Oltmanns
|
10 |
|
Ölund
|
6 |
|
Öman
Oman Josefsson Öman Josephsson Öman |
33 20 1 1 55 |
|
Opdycke
|
5 |
|
Öqvist
|
1 |
|
Orlinski
|
1 |
|
Gorman Orsatti
|
1 |
|
Orth
|
2 |
|
Osburn
|
1 |
|
Osenroth
|
3 |
|
Osius
|
1 |
|
Östensson Nordlund
|
1 |
|
Osterhaug
|
1 |
|
Osterkamp
|
1 |
|
Östlund
|
2 |
|
Oswald
|
2 |
|
Ott
|
9 |
|
Ottarda
|
2 |
|
Otterness
Otterness Smith |
3 1 4 |
|
Owara
|
1 |
|
Owen
|
1 |