- Ow #51,396
- Owais #135,593
- Owan #124,548
- Owca #118,853
- Owczarczak #116,829
- Owczarek #84,136
- Owczarski #109,258
- Owczarzak #45,412
- Oweis #115,639
- Owen #543
- Owenby #13,536
- Owens #140
- Owensby #12,752
- Ower #137,327
- Owers #96,368
- Owes #71,265
- Owings #7,585
- Owino #115,639
- Owl #109,758
- Owle #82,908
- Owlett #115,639
- Ownbey #21,759
- Ownby #14,681
- Owner #147,253
- Ownes #68,770
- Owney #100,302
- Owoc #121,590
- Owoeye #150,452
- Owolabi #48,800
- Owrey #116,201
- Owsiak #117,480
- Owsiany #67,126
- Owsinski #160,975
- Owsley #10,866
- Owston #127,494
- Owuor #139,228
- Owusu #10,837
- Owusuansah #67,943
- Owyang #64,054
- Owyoung #147,253