Last Names Starting with O

2,684 surnames found in U.S. Census data starting with O. Sorted by Census rank.

Rank	Name	Est. Bearers	Per 100K	Rarity
#21430	Orrick	1,425	0.42	Rare
#21496	Orenstein	1,421	0.41	Rare
#21526	Oberman	1,418	0.41	Rare
#21564	Oak	1,416	0.41	Rare
#21643	Okon	1,409	0.41	Rare
#21675	Olcott	1,406	0.41	Rare
#21686	Orloff	1,405	0.41	Rare
#21722	Oppong	1,402	0.41	Rare
#21766	Otts	1,399	0.41	Rare
#21812	Ollie	1,394	0.41	Rare
#21880	Olavarria	1,390	0.41	Rare
#21932	Old	1,386	0.40	Rare
#21967	Outten	1,384	0.40	Rare
#21991	Outen	1,382	0.40	Rare
#22124	Ohanian	1,371	0.40	Rare
#22223	Occhipinti	1,363	0.40	Rare
#22267	Offord	1,360	0.40	Rare
#22298	Odoms	1,358	0.40	Rare
#22298	Ostrow	1,358	0.40	Rare
#22315	Oats	1,357	0.40	Rare
#22347	Ohair	1,354	0.40	Rare
#22360	Oakland	1,353	0.39	Rare
#22360	Ouimet	1,353	0.39	Rare
#22420	Olejniczak	1,350	0.39	Rare
#22534	Oertel	1,342	0.39	Rare
#22564	Orengo	1,339	0.39	Rare
#22690	Orrego	1,330	0.39	Rare
#22709	Overholser	1,329	0.39	Rare
#22709	Ownbey	1,329	0.39	Rare
#22732	Ost	1,328	0.39	Rare
#22840	Oregan	1,320	0.39	Rare
#22865	Okamura	1,319	0.38	Rare
#22931	Olarte	1,315	0.38	Rare
#23022	Oke	1,310	0.38	Rare
#23096	Obeid	1,304	0.38	Rare
#23096	Osoria	1,304	0.38	Rare
#23144	Ocker	1,300	0.38	Rare
#23186	Ozdemir	1,298	0.38	Rare
#23289	Orso	1,291	0.38	Rare
#23332	Oglesbee	1,289	0.38	Rare
#23439	Onan	1,282	0.37	Rare
#23473	Orem	1,280	0.37	Rare
#23629	Osier	1,271	0.37	Rare
#23658	Orsi	1,268	0.37	Rare
#23772	Ozturk	1,261	0.37	Rare
#23795	Oakman	1,260	0.37	Rare
#24007	Ok	1,248	0.36	Rare
#24007	Oregon	1,248	0.36	Rare
#24212	Opara	1,236	0.36	Rare
#24236	Otterson	1,235	0.36	Rare