Last Names Starting with O

2,781 surnames found in U.S. Census data starting with O. Sorted by Census rank.

Rank	Name	Est. Bearers	Per 100K	Rarity
#15564	Olmo	2,150	0.64	Rare
#15579	Outland	2,150	0.64	Rare
#15639	Osei	2,116	0.63	Rare
#15673	Ore	2,116	0.63	Rare
#15763	Ogara	2,116	0.63	Rare
#15806	Olivero	2,083	0.62	Rare
#15833	Onate	2,083	0.62	Rare
#15898	Oberry	2,083	0.62	Rare
#15995	Oram	2,083	0.62	Rare
#16064	Ochsner	2,049	0.61	Rare
#16125	Oppenheim	2,049	0.61	Rare
#16214	Oscar	2,015	0.60	Rare
#16228	Orrell	2,015	0.60	Rare
#16265	Olah	2,015	0.60	Rare
#16273	Ostendorf	2,015	0.60	Rare
#16315	Oren	2,015	0.60	Rare
#16327	Oda	2,015	0.60	Rare
#16349	Orvis	2,015	0.60	Rare
#16462	Oberlin	1,982	0.59	Rare
#17005	Oliverio	1,915	0.57	Rare
#17063	Orner	1,881	0.56	Rare
#17087	Otwell	1,881	0.56	Rare
#17104	Opp	1,881	0.56	Rare
#17127	Overbeck	1,881	0.56	Rare
#17229	Overall	1,881	0.56	Rare
#17331	Ovando	1,847	0.55	Rare
#17398	Olaughlin	1,847	0.55	Rare
#17472	Overbay	1,847	0.55	Rare
#17551	Ohlson	1,814	0.54	Rare
#17565	Oo	1,814	0.54	Rare
#17596	Odegard	1,814	0.54	Rare
#17625	Orzechowski	1,814	0.54	Rare
#17673	Othman	1,814	0.54	Rare
#17699	Ours	1,814	0.54	Rare
#17699	Orwig	1,814	0.54	Rare
#17709	Ortis	1,814	0.54	Rare
#17798	Osby	1,780	0.53	Rare
#17911	Ovalles	1,780	0.53	Rare
#17951	Opitz	1,780	0.53	Rare
#17992	Oles	1,780	0.53	Rare
#18018	Ottman	1,780	0.53	Rare
#18068	Odriscoll	1,747	0.52	Rare
#18098	Obermeyer	1,747	0.52	Rare
#18156	Osowski	1,747	0.52	Rare
#18218	Osterberg	1,747	0.52	Rare
#18366	Okelly	1,713	0.51	Rare
#18431	Orosz	1,713	0.51	Rare
#18467	Oshields	1,713	0.51	Rare
#18572	Orban	1,679	0.50	Rare
#18584	Orihuela	1,679	0.50	Rare