Surnames Ondis - Ong
- Ondis (3 records)
- Ondler (9 records)
- Ondo (20 records)
- Ondouska (1 records)
- Ondracek (4 records)
- Ondrak (1 records)
- Ondrako (2 records)
- Ondras (1 records)
- Ondrasek (5 records)
- Ondrasik (3 records)
- Ondre (2 records)
- Ondrejcak (1 records)
- Ondrejcin (1 records)
- Ondrejcka (2 records)
- Ondrejicka (2 records)
- Ondrejkovich (1 records)
- Ondrella (1 records)
- Ondres (1 records)
- Ondrey (7 records)
- Ondreyco (2 records)
- Ondreyka (2 records)
- Ondricek (5 records)
- Ondrick (5 records)
- Ondriezek (4 records)
- Ondrik (1 records)
- Ondris (2 records)
- Ondrisek (2 records)
- Ondriska (1 records)
- Ondrosek (1 records)
- Ondrovic (2 records)
- Ondrovich (1 records)
- Ondrups (2 records)
- Ondrus (1 records)
- Ondrusek (1 records)
- Ondrush (1 records)
- Ondry (2 records)
- Ondryska (1 records)
- One (13 records)
- Onea (1 records)
- Oneagle (1 records)
- Oneal (1,261 records)
- Oneale (12 records)
- Oneall (15 records)
- Onealmccarthy (1 records)
- Onechyk (1 records)
- Onedera (1 records)
- Onederra (1 records)
- Oneel (28 records)
- Onefeather (1 records)
- Oneil (1,256 records)
- Oneilcasey (1 records)
- Oneile (3 records)
- Oneilin (2 records)
- Oneill (2,249 records)
- Oneille (1 records)
- Oneillharden (1 records)
- Oneillion (1 records)
- Oneilllane (1 records)
- Oneilmeditz (1 records)
- Onek (1 records)
- Onekea (1 records)
- Onelas (1 records)
- Onele (1 records)
- Onelio (2 records)
- Onell (8 records)
- Onellion (3 records)
- Onello (1 records)
- Onelly (2 records)
- Onels (2 records)
- Onermaa (1 records)
- Oneschuk (1 records)
- Onesi (1 records)
- Onesian (1 records)
- Onesini (1 records)
- Onesko (2 records)
- Onesky (3 records)
- Oneslager (1 records)
- Oness (4 records)
- Onessimo (6 records)
- Onestad (1 records)
- Onestelli (1 records)
- Onesti (13 records)
- Onesto (5 records)
- Oneth (3 records)
- Oneto (163 records)
- Onetti (5 records)
- Onetto (6 records)
- Oney (54 records)
- Oneyear (1 records)
- Onez (1 records)
- Onfer (2 records)
- Onffroy (1 records)
- Ong (427 records)