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Name Lineage

    Surnames beginning with O

    448 surnames starting with O, ordered by how many people carry them in the United States, with notable names that are rare in the US further down.

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    #SurnameOriginUS rankPeople in the US
    1 Ortiz Spanish 68 286,899
    2 Owens patronymic 140 182,719
    3 Olson Swedish, patronymic 157 164,035
    4 Ortega Spanish 239 127,256
    5 O'Brien Irish, patronymic 258 118,557
    6 Oliver patronymic 264 115,900
    7 O'Connor Irish, patronymic 417 77,923
    8 Ochoa Spanish 408 78,677
    9 Osborne English, patronymic 502 66,827
    10 Orozco Basque, place 512 65,904
    11 Owen 543 61,630
    12 Olsen Danish, patronymic 566 59,356
    13 O'Neill Irish, patronymic 689 50,028
    14 O'Neal Irish 729 47,979
    15 Orr 774 44,388
    16 O'Donnell Irish 795 43,460
    17 O'Connell Irish, patronymic 961 36,194
    18 Odom English, nickname 996 35,020
    19 Osborn patronymic 1,078 32,439
    20 Odell 1,117 31,349
    21 Osorio Spanish 1,199 29,482
    22 O'Neil Irish, patronymic 1,220 28,949
    23 Olvera 1,275 27,551
    24 Orellana 1,319 26,651
    25 Ott 1,373 25,738
    26 Ocampo Spanish, place 1,374 25,720
    27 Olivares Spanish 1,490 23,982
    28 Otto German 1,587 22,558
    29 Ornelas 1,568 22,969
    30 O'Leary Irish 1,607 22,329
    31 Ojeda 1,633 22,045
    32 Oliveira Portuguese 1,887 19,055
    33 O'Hara Irish 1,660 21,710
    34 Otero Spanish 1,716 20,937
    35 Olivas Spanish 1,785 20,106
    36 Oliva 1,835 19,513
    37 Overton English, place 1,914 18,820
    38 Ogden English, place 1,906 18,860
    39 Ordonez Spanish 1,952 18,498
    40 Oh Korean 1,978 18,285
    41 O'Malley Irish 2,046 17,588
    42 O'Keefe Irish, patronymic 2,079 17,414
    43 Oakes patronymic 2,065 17,499
    44 Oakley English, place 2,099 17,238
    45 O'Rourke Irish, patronymic 2,213 16,457
    46 Ontiveros Spanish 2,225 16,382
    47 Oswald English, patronymic 2,530 14,322
    48 Ogle 2,524 14,354
    49 Ouellette 2,583 13,984
    50 Oldham English, place 2,792 12,928
    51 Orlando Italian 2,865 12,586
    52 O'Reilly Irish, patronymic 2,970 12,074
    53 Overstreet 2,907 12,342
    54 Oglesby 2,919 12,271
    55 O'Sullivan Irish 3,032 11,818
    56 Oates 2,940 12,202
    57 O'Toole 3,309 10,842
    58 Olguín 3,356 10,660
    59 O'Shea Irish 3,395 10,531
    60 Olivo 3,412 10,483
    61 Olmos Spanish 3,596 9,895
    62 Osman Norse 3,590 9,908
    63 Ong Chinese 3,704 9,584
    64 Olivarez 3,660 9,720
    65 Ostrander 3,722 9,518
    66 Olivera 3,896 9,108
    67 Ocasio 3,815 9,293
    68 Outlaw nickname 3,991 8,901
    69 Oden 4,315 8,240
    70 Orosco 4,273 8,313
    71 Oviedo Spanish 4,362 8,145
    72 Olmstead 4,430 8,021
    73 Ordaz 4,578 7,753
    74 Olds 4,627 7,670
    75 Omar 4,631 7,660
    76 Orta Catalan, place 4,535 7,820
    77 Otis English, patronymic 4,699 7,549
    78 Ovalle 4,610 7,698
    79 O'Grady Irish, patronymic 4,831 7,306
    80 Osuna Spanish, place 4,666 7,601
    81 Osburn 4,699 7,549
    82 Oaks 4,903 7,182
    83 Oxendine place 4,930 7,139
    84 Oropeza Spanish 4,965 7,082
    85 Orton 5,201 6,720
    86 Ostrowski Polish 5,015 7,005
    87 Olivier French 5,438 6,400
    88 Orth 5,482 6,345
    89 Osgood 5,619 6,186
    90 O'Bryan 5,433 6,408
    91 Overby Danish 5,512 6,311
    92 Oster German 5,554 6,259
    93 Ozuna Spanish 5,499 6,327
    94 Obregon Spanish 5,630 6,172
    95 Ochs 5,853 5,901
    96 Orona 5,649 6,145
    97 Oliphant 5,931 5,808
    98 Olmedo Spanish 5,967 5,768
    99 Olinger German 5,998 5,732
    100 Olive place 6,021 5,712
    101 Oberg 6,179 5,537
    102 Osteen 6,223 5,497
    103 Olszewski Polish 6,164 5,554
    104 Overman 6,326 5,396
    105 O'Quinn Irish, patronymic 6,284 5,439
    106 Oquendo Spanish 6,263 5,455
    107 O'Hare Irish, patronymic 6,607 5,128
    108 Oswalt 6,524 5,198
    109 O'Meara Irish, patronymic 6,983 4,801
    110 O'Mara Irish, patronymic 6,993 4,792
    111 Orcutt 6,940 4,831
    112 Ousley 7,048 4,751
    113 Oliveros Spanish 7,217 4,624
    114 Ogletree 7,369 4,519
    115 Oxley English, place 7,694 4,315
    116 Oxford English, place 7,387 4,509
    117 Odum 7,585 4,381
    118 Oseguera Spanish 7,455 4,470
    119 Olea 7,492 4,447
    120 Otten 7,561 4,396
    121 Orange French 7,629 4,350
    122 Otte 7,572 4,387
    123 Owings 7,585 4,381
    124 Olin 7,950 4,163
    125 Ou 7,891 4,196
    126 Obryant 8,283 4,001
    127 Oday Irish 8,878 3,688
    128 Odle 8,317 3,984
    129 Oleson 8,780 3,734
    130 Ober German 8,799 3,724
    131 Ospina Spanish 8,697 3,774
    132 Ortez 8,720 3,762
    133 Ormsby Norse, place 8,981 3,643
    134 Ostrom Swedish 9,343 3,485
    135 O'Conner Irish 9,048 3,611
    136 Oceguera Spanish 9,081 3,599
    137 Oney 9,232 3,528
    138 Ogilvie Scottish Gaelic 9,510 3,418
    139 Oyler 9,320 3,493
    140 O'Halloran Irish 9,839 3,289
    141 Oliveri Italian 9,667 3,357
    142 Obando 9,551 3,404
    143 O'Shaughnessy Irish 9,940 3,246
    144 Olivieri Italian 9,839 3,289
    145 Olney English, place 9,932 3,248
    146 O'Brian 10,064 3,203
    147 Olmsted 10,082 3,197
    148 O'Boyle 9,859 3,281
    149 O'Loughlin Irish 10,191 3,162
    150 Osterman 9,919 3,256
    151 Orman 10,268 3,139
    152 Orlowski Polish 10,041 3,208
    153 Oman 10,079 3,198
    154 Orndorff 10,250 3,145
    155 Ogburn 10,132 3,182
    156 Oshiro Japanese 10,155 3,177
    157 Ottinger German 10,352 3,112
    158 Orsini 10,505 3,055
    159 Oldfield English, place 11,226 2,816
    160 Onofre 10,396 3,099
    161 O'Callaghan Irish 10,626 3,014
    162 O'Bannon 11,716 2,675
    163 O'Dea Irish, patronymic 10,751 2,968
    164 Oldenburg 10,819 2,944
    165 Owusu 10,837 2,938
    166 Owsley 10,866 2,932
    167 Offutt 10,983 2,896
    168 Overholt 10,987 2,894
    169 Oller German, occupational 11,283 2,800
    170 Ordway English 11,478 2,741
    171 Olague 11,185 2,827
    172 O'Daniel 11,395 2,767
    173 Olsson Swedish 11,954 2,615
    174 O'Hearn 11,529 2,728
    175 Ortego 11,697 2,679
    176 Osbourne 12,156 2,563
    177 Oliveras 12,042 2,591
    178 Overbey 11,663 2,688
    179 Opperman 11,899 2,631
    180 Oddo 11,764 2,663
    181 Overcash 11,856 2,641
    182 O'Kelley 12,320 2,524
    183 Okane 11,936 2,621
    184 Ogg 12,121 2,572
    185 Olander Swedish, place 12,576 2,462
    186 Oros 12,384 2,512
    187 Orantes 12,399 2,507
    188 O'Gorman Irish, patronymic 12,842 2,397
    189 Orme Norse 12,473 2,489
    190 Oppenheimer German 13,850 2,182
    191 Ortman German 12,520 2,475
    192 Orduna Spanish, place 12,683 2,435
    193 Organ occupational 12,696 2,431
    194 Ohler German 12,752 2,420
    195 Owensby 12,752 2,420
    196 Ormond 13,084 2,346
    197 Orchard place 13,101 2,340
    198 Okamoto Japanese 12,944 2,373
    199 Oberle German 12,953 2,371
    200 Orduno 13,081 2,347
    201 Ono Japanese 14,050 2,143
    202 Ocon Spanish 13,115 2,337
    203 Oyer 13,214 2,313
    204 Olmeda Spanish 13,271 2,298
    205 Oberholtzer 13,326 2,289
    206 Osterhout 13,330 2,288
    207 Owenby Norse, place 13,536 2,241
    208 O'Rear 13,815 2,188
    209 Otey 13,572 2,234
    210 O'Farrell 14,127 2,127
    211 Oestreich German 13,690 2,212
    212 Overturf German 13,707 2,208
    213 Obert 13,997 2,153
    214 Overly 13,746 2,201
    215 Oberlander German 13,786 2,194
    216 Ogren Swedish 13,806 2,190
    217 Ostler 14,119 2,128
    218 Osornio 13,922 2,169
    219 Ortegon 13,938 2,166
    220 O'Hanlon 14,474 2,063
    221 O'Donoghue Irish, patronymic 14,215 2,111
    222 Overmyer 14,238 2,106
    223 Oatman 14,257 2,102
    224 Ohl German 14,739 2,016
    225 Oehler 14,294 2,095
    226 O'Keeffe Irish 14,579 2,043
    227 Ota Japanese 14,920 1,984
    228 Oubre 14,713 2,019
    229 Olden 14,749 2,014
    230 Ocana 14,468 2,064
    231 Omer 14,474 2,063
    232 Ortuno 14,495 2,058
    233 Oyola 14,532 2,051
    234 Okada Japanese 14,893 1,987
    235 Ownby 14,681 2,026
    236 Ouyang Chinese 15,005 1,968
    237 Ollis 14,739 2,016
    238 O'Hagan 14,834 1,998
    239 Okafor 15,194 1,939
    240 Olesen Danish, patronymic 14,881 1,988
    241 O'Banion Irish 15,340 1,912
    242 Ort 15,151 1,946
    243 Ogawa Japanese 15,508 1,887
    244 O'Dowd Irish 15,508 1,887
    245 Olmo 15,564 1,879
    246 Olalde Spanish, place 15,255 1,927
    247 Onorato Italian 15,328 1,913
    248 Ohman Swedish 15,328 1,913
    249 Orris patronymic 15,363 1,909
    250 Ocegueda Spanish 15,418 1,900
    251 Ohm 15,464 1,894
    252 Outland 15,579 1,877
    253 Osei 15,639 1,868
    254 Oram 15,995 1,815
    255 Oda Japanese 16,327 1,765
    256 Ore 15,673 1,862
    257 O'Gara Irish, patronymic 15,763 1,849
    258 Oberlin 16,462 1,746
    259 Olivero 15,806 1,842
    260 Onate Spanish, place 15,833 1,838
    261 O'Berry Irish, patronymic 15,898 1,829
    262 Ochsner German 16,064 1,803
    263 Oppenheim German 16,125 1,795
    264 Orbán Hungarian 18,572 1,485
    265 Oscar Irish, patronymic 16,214 1,781
    266 Orrell 16,228 1,779
    267 Olah 16,265 1,773
    268 Ostendorf 16,273 1,772
    269 Oren 16,315 1,766
    270 Orvis 16,349 1,762
    271 Overbeck 17,127 1,656
    272 Overall 17,229 1,644
    273 Oliverio Italian 17,005 1,671
    274 Orner 17,063 1,664
    275 Otwell 17,087 1,661
    276 Opp 17,104 1,659
    277 Ottman 18,018 1,549
    278 Orzechowski Polish 17,625 1,594
    279 O'Driscoll 18,068 1,543
    280 Ovando Spanish 17,331 1,631
    281 Osby 17,798 1,573
    282 Olaughlin 17,398 1,622
    283 Osmond English, patronymic 19,703 1,367
    284 Overbay 17,472 1,613
    285 O'Kelly 18,366 1,508
    286 Ohlson 17,551 1,603
    287 Oo 17,565 1,601
    288 Odegard Norwegian 17,596 1,597
    289 Othman 17,673 1,588
    290 Orwig 17,699 1,585
    291 Ours 17,699 1,585
    292 Ortis 17,709 1,584
    293 Osterberg 18,218 1,527
    294 Ovalles 17,911 1,561
    295 Opitz 17,951 1,557
    296 Oles 17,992 1,552
    297 Orosz Hungarian 18,431 1,502
    298 Obermeyer 18,098 1,539
    299 Osowski 18,156 1,533
    300 O'Shields 18,467 1,498
    301 Okeke 18,910 1,444
    302 Ottley 18,950 1,440
    303 Ortner German 20,037 1,335
    304 Orihuela 18,584 1,483
    305 Oldaker English, place 19,062 1,428
    306 O'Dwyer Irish 19,075 1,427
    307 Olivar 18,808 1,456
    308 Oberst 20,458 1,298
    309 Odeh 18,961 1,439
    310 Ouk 19,105 1,424
    311 Ostlund 19,152 1,418
    312 Okoro Igbo 20,227 1,317
    313 Oregel 19,200 1,414
    314 Ohanian Armenian 21,568 1,210
    315 Obi 19,296 1,403
    316 Ogata Japanese 19,306 1,402
    317 Outten 19,321 1,401
    318 Ozment 19,348 1,398
    319 Oltman 19,456 1,389
    320 Orgeron French 19,469 1,388
    321 Orea 19,527 1,383
    322 Osegueda 19,538 1,382
    323 Ojo 19,581 1,378
    324 Outen Dutch, place 20,125 1,327
    325 Ogan 19,602 1,376
    326 Ouzts 19,628 1,374
    327 Orenstein 19,671 1,370
    328 Overfield 19,671 1,370
    329 Officer occupational 19,814 1,357
    330 Orrick English 19,865 1,353
    331 O'Flaherty Irish 20,421 1,301
    332 Oakland 21,700 1,200
    333 O'Donovan Irish 19,945 1,345
    334 Ohern 19,997 1,339
    335 Olcott 21,926 1,184
    336 Odegaard 20,076 1,331
    337 Otter 20,076 1,331
    338 On 20,309 1,309
    339 Okamura Japanese 20,985 1,254
    340 Oviatt 20,512 1,293
    341 Occhipinti 20,553 1,290
    342 Obriant 20,574 1,288
    343 Ouimet 21,459 1,218
    344 Otts Dutch, patronymic 20,818 1,268
    345 Ollie 21,583 1,209
    346 Orloff Russian 20,926 1,259
    347 Odoms 20,926 1,259
    348 Olejniczak 21,019 1,251
    349 Orf German 21,048 1,249
    350 Okon 22,421 1,148
    351 Oats 21,307 1,230
    352 Opoku Akan 21,330 1,228
    353 Oberman 22,026 1,177
    354 Otterson 21,360 1,226
    355 Onken German 21,413 1,221
    356 Okoye Igbo 22,924 1,116
    357 Ostrow 21,553 1,211
    358 Osinski 22,246 1,159
    359 Ocanas 21,609 1,207
    360 Orsi 23,185 1,100
    361 Obyrne 21,717 1,198
    362 Ownbey 21,759 1,195
    363 Ocker 21,790 1,193
    364 Ogles 22,618 1,135
    365 Overholser 21,926 1,184
    366 Ost 21,972 1,181
    367 Oakman 22,689 1,130
    368 Offord English, place 22,069 1,174
    369 Orlandi 23,647 1,072
    370 Oler 22,216 1,161
    371 Orso 22,516 1,142
    372 Osbourn 22,543 1,140
    373 Oser 22,637 1,134
    374 Oregan 22,689 1,130
    375 Orem 23,532 1,079
    376 Ord place 24,352 1,029
    377 Opie Cornish 25,601 964
    378 Onstott 22,978 1,113
    379 Olberding 23,785 1,063
    380 Oak 23,019 1,110
    381 Ofori 23,084 1,107
    382 Overland 23,100 1,105
    383 Olavarria 23,167 1,101
    384 Olan 23,205 1,099
    385 Oglesbee 23,251 1,096
    386 Ohair 23,386 1,088
    387 Okonkwo 23,500 1,081
    388 Olarte 23,515 1,080
    389 Okun Polish 24,370 1,028
    390 Ottaviano 24,466 1,023
    391 Oregon French 23,662 1,071
    392 Obeso 23,691 1,069
    393 Orengo 23,737 1,066
    394 Ooten Dutch 23,978 1,052
    395 O'Riley Irish 24,012 1,050
    396 Oja 24,012 1,050
    397 Osterhoudt 24,031 1,049
    398 Oertel 24,064 1,047
    399 Olenick 24,075 1,046
    400 Onan 24,090 1,045