| Surname | Individuals |
|---|---|
|
O'Neil
|
1 |
|
Oakes
|
1 |
|
Obenauf
|
5 |
|
Obenreich
|
1 |
|
Oberauer
|
2 |
|
Obermaier
|
1 |
|
Ochs
|
1 |
|
Oehme
|
2 |
|
Oeler
|
1 |
|
Oelschlegel
|
1 |
|
Oelschlägel
|
1 |
|
Oener
|
1 |
|
Oexmann
|
1 |
|
Offerthal
|
1 |
|
Ohlschlager
|
2 |
|
Oikonomidou
|
1 |
|
Olezewski
|
1 |
|
Opel
|
3 |
|
Opelt
|
1 |
|
Opitz
|
2 |
|
Orlob
|
1 |
|
Ortel
|
1 |
|
Osermayr
|
2 |
|
Oslislo
|
2 |
|
Osmeier
|
1 |
|
Ostertag
|
1 |
|
Osthreim
|
1 |
|
Ostwald
|
1 |
|
Ott
|
3 |
|
Otte
|
1 |
|
Otto
|
7 |
|
Overholser
|
1 |
|
Overney
|
3 |
|
Ozall
|
1 |
|
Öbel
|
1 |
|
Ölschlegel
|
3 |
|
Ötter
|
5 |