The short answer
Oliver leads this list.
Oliver is the most common Chicago dog name beginning with O, with 372 registry profiles. This page includes 514 O names in alphabetical order.
Most common first
Top O dog names in Chicago.
Popularity uses registry-profile counts. The complete table below is alphabetical, as requested.
#1 Oliver 372 profiles
#2 Ollie 254 profiles
#3 Oreo 234 profiles
#4 Olive 230 profiles
#5 Oscar 172 profiles
#6 Otis 159 profiles
#7 Oso 142 profiles
#8 Otto 99 profiles
#9 Ozzie 97 profiles
#10 Oakley 89 profiles
Alphabetical directory
All O dog names.
Repeated spellings are grouped, but their license-event and profile counts remain separate.
514 names
Name Registry profiles License records City rank
O Prime Herrera 1 1 #19,430
O'Callaghan 1 2 #9,578
O'Henry 2 4 #5,149
O'Malley 3 4 #4,133
O-Dog 1 1 #19,431
O-Ren Ishi-Inu 2 4 #5,150
Oak 1 1 #19,432
Oakdale 1 2 #9,579
Oakely 1 1 #19,433
Oakland 1 1 #19,434
Oaklee 2 2 #7,249
Oakley 89 107 #188
Oakley Atristain 1 1 #19,435
Oakley Barclay 1 1 #19,436
Oakley Barnat 1 1 #19,437
Oakley Munoz 1 1 #19,438
Oakley Powers 1 1 #19,439
Oakley Renner 1 1 #19,440
Oakley/ Joy 1 1 #19,441
Oates 3 3 #4,659
Oatis 1 2 #9,580
Oatmeal 3 3 #4,660
Ob 1 5 #7,971
Obadiah Martin 3 3 #4,661
Obama 4 4 #3,587
Obama Jelkes-Allen 2 2 #7,250
Obama Lawrence 1 1 #19,442
Obby 1 3 #8,285
Obelix 1 1 #19,443
Oberon 12 14 #1,414
Oberon Obie Seefeldt 1 1 #19,444
Oberyn 3 3 #4,662
Obi 33 37 #567
Obi Juan 1 1 #19,445
Obi Mcclure 1 4 #8,037
Obi Stone 1 1 #19,446
Obi Wan 5 6 #2,823
Obi Wan Kenobi 1 1 #19,447
Obi Witkin-Harrison 1 1 #19,448
Obi Zenner 1 1 #19,449
Obi-Bama 1 2 #9,581
Obi-Wan 4 5 #3,312
Obie 13 13 #1,356
Obie Juan 2 4 #5,151
Obie Rattan 1 2 #9,582
Obie Taliaferro 1 1 #19,450
Oblio 1 1 #19,451
Obolo 1 1 #19,452
Oboy 1 2 #9,583
Obryn Maloles 1 1 #19,453
Obsidian Obie Hayve 1 1 #19,454
Ocean 5 5 #2,966
Oceancna 1 1 #19,455
Ocho 1 1 #19,456
Octavia 3 3 #4,663
Octavius 3 4 #4,134
Octavius Adonis 1 1 #19,457
October 1 1 #19,458
Octopus 1 1 #19,459
Odd 1 1 #19,460
Oddie 1 1 #19,461
Oddy 1 1 #19,462
Odele Sun Kim 1 1 #19,463
Odell 2 3 #5,668
Odell Funkhouser 1 1 #19,464
Odem 1 1 #19,465
Odessa 4 4 #3,588
Odetta 1 1 #19,466
Odey 2 2 #7,251
Odi 2 2 #7,252
Odie 65 78 #271
Odie Arkin 2 2 #7,253
Odie Crafton 3 8 #3,708
Odie Delgado 1 1 #19,467
Odie Premo 1 1 #19,468
Odin 68 87 #259
Odin Donegan 1 1 #19,469
Odin Edvardsen 1 1 #19,470
Odin Geijer 1 1 #19,471
Odin Martens 1 1 #19,472
Odin Mckelvey 1 1 #19,473
Odin Quinton 1 1 #19,474
Odinn Agape 1 1 #19,475
Odis 1 2 #9,584
Odo 1 1 #19,476
Ody 2 3 #5,669
Odysseus Polyak 1 1 #19,477
Oedipus 1 1 #19,478
Ofa 2 6 #4,922
Officer Bones 1 1 #19,479
Og 1 1 #19,480
Ogden Ava 1 1 #19,481
Oggie 1 1 #19,482
Oggy 2 3 #5,670
Ogie 2 3 #5,671
Ogie Oglethorpe 1 1 #19,483
Ogre 2 2 #7,254
Ogun 2 2 #7,255
Ohana 3 9 #3,696
Ohdeeoh 1 1 #19,484
Ohio 2 4 #5,152
Ohmy 1 1 #19,485
Ohna 1 1 #19,486
Ohona Herrera 2 2 #7,256
Ohso (Oso) 1 1 #19,487
Oisin 2 2 #7,257
Oj 1 1 #19,488
Oj Minor 3 3 #4,664
Ojibwa 1 1 #19,489
Ojito 1 1 #19,490
Ojos 1 1 #19,491
Okalani 1 4 #8,038
Okami 1 1 #19,492
Okami Herrera 1 2 #9,585
Okapi 1 1 #19,493
Okey 1 1 #19,494
Okie 7 12 #2,060
Okie Covert 1 1 #19,495
Okilani 2 2 #7,258
Okja 1 1 #19,496
Okley 1 1 #19,497
Oko 3 3 #4,665
Oksana 1 1 #19,498
Olaf 20 26 #886
Olaf Hernandez-Meza 1 1 #19,499
Olaf Kermath 1 1 #19,500
Olaf Melecio 1 1 #19,501
Ole 2 2 #7,259
Oleg 1 1 #19,502
Olenna 2 2 #7,260
Oley Evin 1 1 #19,503
Olga 3 3 #4,666
Oli 4 4 #3,589
Olie 2 2 #7,261
Olin 2 2 #7,262
Oliv 1 1 #19,504
Oliv Balesh 2 3 #5,672
Oliva 1 1 #19,505
Olive 230 299 #61
Olive Aka Ollie 1 1 #19,506
Olive Black 1 1 #19,507
Olive Cora 1 1 #19,508
Olive Elvis 1 1 #19,509
Olive Garofalo 1 3 #8,286
Olive Hennessy 1 1 #19,510
Olive Jivan 1 1 #19,511
Olive June 1 1 #19,512
Olive Loquercio 1 1 #19,513
Olive Lunn 1 2 #9,586
Olive Mae 2 2 #7,263
Olive Martens 1 1 #19,514
Olive Natale 1 1 #19,515
Olive Oil 1 1 #19,516
Olive Ollie Barner 1 1 #19,517
Olive Oyl Mamita 1 1 #19,518
Olive Pit 1 1 #19,519
Olive Reichert 1 1 #19,520
Olive Rose 1 1 #19,521
Olive Serret 1 1 #19,522
Olive Siebert 1 1 #19,523
Olive Snider 1 1 #19,524
Olive Vento 1 1 #19,525
Oliver 372 471 #19
Oliver 'Ollie' 1 1 #19,526
Oliver Banks 1 1 #19,527
Oliver Cory 1 1 #19,528
Oliver Davidson Shaw 1 1 #19,529
Oliver Frank 1 1 #19,530
Oliver Gates 1 2 #9,587
Oliver Gonzalez 1 1 #19,531
Oliver Hendricks 1 1 #19,532
Oliver J 1 2 #9,588
Oliver Jaxx 1 1 #19,533
Oliver Jimenez 1 1 #19,534
Oliver Kirchmeier 1 1 #19,535
Oliver Langdon 1 1 #19,536
Oliver Lappe 1 1 #19,537
Oliver Leveling 1 1 #19,538
Oliver Levy 1 1 #19,539
Oliver Lou 1 1 #19,540
Oliver Lou Birk 1 1 #19,541
Oliver Louise 1 1 #19,542
Oliver Maley 1 1 #19,543
Oliver Markman 1 1 #19,544
Oliver Moeller 1 1 #19,545
Oliver Moxley 1 2 #9,589
Oliver Ollie Wisp 1 1 #19,546
Oliver Or Ollie 1 1 #19,547
Oliver Pickle 1 1 #19,548
Oliver Princis 1 1 #19,549
Oliver Raul Garza 1 2 #9,590
Oliver Reese 1 1 #19,550
Oliver Ribaudo 1 1 #19,551
Oliver Riley 1 1 #19,552
Oliver Rufuss Earl 1 2 #9,591
Oliver Ryan 1 1 #19,553
Oliver Salaman 2 2 #7,264
Oliver Scott 2 2 #7,265
Oliver Snacks 1 1 #19,554
Oliver Strickler 1 1 #19,555
Oliver Waldron Knott 1 1 #19,556
Oliver Woodruff 1 2 #9,592
Oliver Zagotta 1 1 #19,557
Oliverek 1 1 #19,558
Olivia 56 76 #318
Olivia Bahena 1 1 #19,559
Olivia Benson 1 2 #9,593
Olivia Ho 1 1 #19,560
Olivia Nash 1 1 #19,561
Olivia Newton 1 1 #19,562
Olivia Newton John 1 2 #9,594
Olivia Penny Sanz 1 1 #19,563
Olivia Pope 5 5 #2,967
Olivia Reynoso 1 1 #19,564
Olivia Sky 1 1 #19,565
Oliviarose 1 1 #19,566
Olivier 1 1 #19,567
Olivier Bhattacharya 1 1 #19,568
Ollee 1 1 #19,569
Olli 4 6 #3,143
Ollie 254 298 #52
Ollie Bamaung 1 1 #19,570
Ollie Beyer 1 1 #19,571
Ollie Cabrera 1 4 #8,039
Ollie Evans 1 1 #19,572
Ollie Gallegos 1 1 #19,573
Ollie Garbisch 1 2 #9,595
Ollie Holt 1 1 #19,574
Ollie Macmaster 1 1 #19,575
Ollie Mae 1 1 #19,576
Ollie Militante 1 3 #8,287
Ollie Murthy 1 2 #9,596
Ollie Pan 1 1 #19,577
Ollie Prorok 1 1 #19,578
Ollie Sandoval 1 1 #19,579
Ollie Seesel 1 1 #19,580
Ollie Sexauer 1 2 #9,597
Ollie Small 1 1 #19,581
Ollie Sykes Batorek 1 1 #19,582
Ollie West 1 1 #19,583
Ollie Yau 1 1 #19,584
Olliemae 1 1 #19,585
Ollivander 1 1 #19,586
Olly 5 5 #2,968
Olly Witt 1 1 #19,587
Olsen 1 1 #19,588
Olson 2 2 #7,266
Oly 2 2 #7,267
Olympia 1 1 #19,589
Oma Meier 1 1 #19,590
Omani 1 1 #19,591
Omar 13 15 #1,324
Omar Major 1 1 #19,592
Omar Waymire 1 2 #9,598
Ombre 2 2 #7,268
Omega 3 3 #4,667
Omega Creten Barnes 1 1 #19,593
Omelette 1 1 #19,594
Omellette 1 1 #19,595
Omen 3 4 #4,135
Ona 1 1 #19,596
Once 1 1 #19,597
Onegin 1 1 #19,598
Oneway 1 1 #19,599
Oni 3 3 #4,668
Onie 2 3 #5,673
Onigiri 1 1 #19,600
Onion 3 3 #4,669
Onix 1 1 #19,601
Onna 1 1 #19,602
Onxy 1 1 #19,603
Onyc 1 1 #19,604
Onyx 79 97 #218
Onyx Blu 1 1 #19,605
Onyx Fauntleroy 1 1 #19,606
Onyx Jr 1 1 #19,607
Onyx Kainer 1 1 #19,608
Onyx Marchan 1 1 #19,609
Onyx Novak 1 2 #9,599
Onyx Okunola 1 1 #19,610
Onyx Robertson 1 1 #19,611
Onyx The Ox 1 1 #19,612
Onyx Zane 1 1 #19,613
Oobi 1 1 #19,614
Oodle 1 1 #19,615
Oodles 1 1 #19,616
Oogi 2 2 #7,269
Oogie 1 1 #19,617
Oolie 1 1 #19,618
Oolong 1 1 #19,619
Oolong Logunetz 1 2 #9,600
Oona 8 9 #1,980
Oona Bubble 1 1 #19,620
Ooyoo 1 1 #19,621
Op 1 1 #19,622
Opah 1 1 #19,623
Opal 21 24 #866
Opal Crum 2 2 #7,270
Opal Frank 1 3 #8,288
Opal Grace 1 1 #19,624
Opal Higgins 1 1 #19,625
Ope 1 1 #19,626
Opera 1 1 #19,627
Ophelia 11 13 #1,513
Ophie 1 2 #9,601
Opi 2 2 #7,271
Opie 32 38 #586
Opie Kainer 1 3 #8,289
Opie Kapraun 1 1 #19,628
Oppa 1 1 #19,629
Oprah 2 2 #7,272
Optimus 5 5 #2,969
Optimus Prime 4 5 #3,313
Opus 1 1 #19,630
Opy 1 1 #19,631
Opyll 3 3 #4,670
Ora 2 2 #7,273
Oragina 1 1 #19,632
Orbea 2 3 #5,674
Orbis 1 1 #19,633
Orbit 3 3 #4,671
Orca 1 1 #19,634
Orchid 4 5 #3,314
Ore 1 1 #19,635
Oren 1 1 #19,636
Oreo 234 325 #58
Oreo Aguilar 1 1 #19,637
Oreo Coleman 1 1 #19,638
Oreo Cookie 1 1 #19,639
Oreo Cookie Mitchell 1 1 #19,640
Oreo Flores 1 1 #19,641
Oreo J Atsoc 1 1 #19,642
Oreo Louderman 1 1 #19,643
Oreo Mei 1 1 #19,644
Oreo Moore 1 1 #19,645
Oreo Murciano-Sufian 1 1 #19,646
Oreo Panda Barnes 1 1 #19,647
Oreo Ramos 1 1 #19,648
Oreo Ruth Bailey 1 1 #19,649
Oreo Scott-Martin 1 1 #19,650
Oreo Stitch 1 1 #19,651
Oreo Szafraniec 2 2 #7,274
Oreo Williams 1 1 #19,652
Oreo Woods 1 1 #19,653
Orfeo 1 2 #9,602
Organa 1 1 #19,654
Ori 5 9 #2,608
Ori Heinrich 1 1 #19,655
Orio 1 1 #19,656
Oriole 1 1 #19,657
Orion 11 13 #1,514
Orisa 1 1 #19,658
Orla 7 8 #2,195
Orlagh 1 1 #19,659
Orlaith 1 2 #9,603
Orlanda 1 1 #19,660
Orlando 2 2 #7,275
Orli 1 1 #19,661
Ornament 1 1 #19,662
Oro 1 1 #19,663
Ororo 2 3 #5,675
Ororo Storm 2 2 #7,276
Orso 1 1 #19,664
Orson 4 4 #3,590
Orson Welles Bondy 1 1 #19,665
Orval Henrichs 1 3 #8,290
Orville 2 3 #5,676
Oryx 1 1 #19,666
Orzo 1 1 #19,667
Osa 17 20 #1,048
Osa Dulin 1 3 #8,291
Osaka 1 1 #19,668
Osamo 1 1 #19,669
Osborne 1 1 #19,670
Osc 1 1 #19,671
Oscar 172 247 #86
Oscar Bear Test 1 1 #19,672
Oscar Briechledoyle 1 1 #19,673
Oscar Cohen 1 1 #19,674
Oscar Hernandez 1 1 #19,675
Oscar Johnson 2 2 #7,277
Oscar Kamphowe 1 1 #19,676
Oscar Meyer 1 1 #19,677
Oscar Perkins 1 2 #9,604
Oscasr 1 1 #19,678
Oscer 1 1 #19,679
Osco Griffith 1 1 #19,680
Oseo 1 1 #19,681
Osha 2 2 #7,278
Oshanla 2 2 #7,279
Oshi 1 1 #19,682
Oshie 4 5 #3,315
Oshkosh 1 2 #9,605
Oshnala 1 1 #19,683
Osho 2 3 #5,677
Oshun 2 2 #7,280
Osi 1 1 #19,684
Osiana 1 1 #19,685
Osinis 1 1 #19,686
Osio 1 1 #19,687
Osiris 6 10 #2,305
Osiris Arceo 1 1 #19,688
Osiris Bowman-Cohen 1 1 #19,689
Osiris Ozzy Bloom 1 1 #19,690
Osita 5 6 #2,824
Osito 17 19 #1,055
Osito Aguayo 1 1 #19,691
Osito Armendariz 1 1 #19,692
Osito Olvera 1 1 #19,693
Osito Ramirez 1 1 #19,694
Oskar 9 13 #1,721
Oskee 6 8 #2,383
Oskee Bow Wow 1 1 #19,695
Oskee Bowwow 1 1 #19,696
Oski 1 1 #19,697
Oskie 1 1 #19,698
Oslo 8 8 #2,027
Osmium 1 1 #19,699
Oso 142 183 #114
Oso Abrego 1 1 #19,700
Oso Godwin 2 2 #7,281
Oso Musquiz 1 1 #19,701
Oso Najera 1 1 #19,702
Oso Pardo 1 1 #19,703
Oso Ruiz 1 2 #9,606
Oso VIllasenor 1 1 #19,704
Osos 1 1 #19,705
Osoz 1 1 #19,706
Ossi 1 1 #19,707
Ossy Rosado 1 2 #9,607
Osu 1 1 #19,708
Oswald 9 9 #1,831
Oswald Aka Ozzi 1 1 #19,709
Oswald Aka Ozzie 1 3 #8,292
Oswald Ryan 1 1 #19,710
Oswald “Ollie” 1 1 #19,711
Osyl 2 2 #7,282
Otahyoni 1 1 #19,712
Othella 1 1 #19,713
Otie 1 1 #19,714
Otik 1 1 #19,715
Otis 159 204 #101
Otis Bane 1 1 #19,716
Otis Barkley 1 1 #19,717
Otis Davis 1 1 #19,718
Otis De La Vega 1 1 #19,719
Otis Dillow 1 1 #19,720
Otis Franklin 1 1 #19,721
Otis Klein 1 1 #19,722
Otis Nelken 1 1 #19,723
Otis Pohl 1 3 #8,293
Otis Raczka 1 1 #19,724
Otis Rafter-Welton 1 1 #19,725
Otis Redding 2 2 #7,283
Otis Schneider 1 1 #19,726
Otis Stanislawski 1 1 #19,727
Otis T Berkheimer 1 1 #19,728
Otis Volz 1 1 #19,729
Otis W Ellis 1 1 #19,730
Otis Winston 1 1 #19,731
Otter 17 20 #1,049
Otti 1 1 #19,732
Ottie 1 3 #8,294
Ottis 3 3 #4,672
Otto 99 132 #169
Otto Adler 1 1 #19,733
Otto R 1 2 #9,608
Otto Szwan 1 1 #19,734
Otto Vaughan 2 3 #5,678
Otto Von Rozich 1 1 #19,735
Otzi 1 1 #19,736
Oual 1 1 #19,737
Ouch 2 2 #7,284
Oui Oui 1 2 #9,609
Ouija 2 4 #5,153
Ouisey 1 1 #19,738
Ouji 1 2 #9,610
Ouji Miyata 1 1 #19,739
Oulu 1 2 #9,611
Outback 1 1 #19,740
Outlaw 2 2 #7,285
Ovi 3 4 #4,136
Ovie 3 4 #4,137
Owen 19 20 #954
Owen Durham 1 1 #19,741
Own 1 1 #19,742
Ox 2 2 #7,286
Oxford 4 5 #3,316
Oxlade-Chamberlain 1 1 #19,743
Oxley 1 1 #19,744
Oya 1 1 #19,745
Oye Chisom Obere 1 1 #19,746
Oyuki 1 1 #19,747
Oz 6 7 #2,461
Oz Cuevas 2 3 #5,679
Ozai 1 1 #19,748
Ozark 2 2 #7,287
Ozi 1 1 #19,749
Ozie 2 3 #5,680
Ozo 1 1 #19,750
Ozymandias 1 1 #19,751
Ozzi 1 1 #19,752
Ozzie 97 124 #175
Ozzie Baker 1 1 #19,753
Ozzie Halloran 1 1 #19,754
Ozzie Shohet Zabin 1 1 #19,755
Ozzy 47 66 #380
Ozzy Bevan 1 1 #19,756
Ozzy Garcia 1 1 #19,757
Ozzy Oetter 1 1 #19,758
Ozzy Pawsbourne 2 2 #7,288
Ozzy Reyes-Janski 1 1 #19,759
Ozzy Rosado 1 1 #19,760
Ozzy Toh 1 1 #19,761
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A 1,078 names B 2,317 names C 1,993 names D 1,074 names E 582 names F 738 names G 847 names H 780 names I 275 names J 834 names K 1,057 names L 1,472 names M 2,298 names N 636 names O 514 names P 1,426 names Q 90 names R 1,365 names S 2,076 names T 1,242 names U 79 names V 226 names W 545 names X 54 names Y 143 names Z 357 names
Counting notes
One row is a license event, not necessarily one dog.
The city export does not contain a dog ID, license/emblem ID, or anonymized owner ID. Renewals can therefore repeat the same dog, while two different dogs can share the same name and traits.
What “registry profile” means: a distinct combination of dog name, breed,
color, gender, ZIP code, and ward. That removes obvious repeated rows and gives a steadier
popularity signal, but it can still merge different dogs or split one dog after a move or
profile change. We publish both the 147,119 license-event rows
and the 116,813 registry profiles,
and never describe either as an exact count of unique Chicago dogs.
Questions about this list
Dog Names That Start With O FAQ.
What is the most popular dog name that starts with O?
Oliver is the most common Chicago dog name beginning with O, with 372 registry profiles. This page includes 514 O names in alphabetical order.
How many dog names start with O in the Chicago registry?
The public A–Z directory contains 514 valid name spellings beginning with O. Blank, placeholder, numeric-only, and non-A–Z-leading entries are excluded.
Does each registry profile represent one unique dog?
No. A registry profile is a distinct combination of name, breed, color, gender, ZIP code, and ward. It reduces obvious renewal duplicates but cannot prove unique identity because the city did not provide a dog or license ID.
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