Boys’ names starting with O

2025 · United States

Oliver is the most popular American boy’s name beginning with O, given to 14,939 babies in 2025. This list ranks the top 100 by births that year.

#	Name	Births in 2025
1	Oliver	14,939
2	Owen	7,190
3	Oscar	1,620
4	Omar	1,333
5	Otto	1,241
6	Orion	1,012
7	Onyx	881
8	Oakley	688
9	Odin	604
10	Ozzy	548
11	Otis	422
12	Omari	397
13	Ozias	381
14	Ocean	375
15	Orlando	275
16	Oziel	229
17	Ollie	207
18	Osiris	200
19	Osman	181
20	Oren	174
21	Oakland	160
22	Octavio	154
23	Osvaldo	130
24	Orson	126
25	Osiel	123
26	Ozzie	123
27	Obadiah	104
28	Oskar	93
29	Orhan	92
30	Oziah	87
31	Olin	86
32	Orin	85
33	Oslo	78
34	Ori	76
35	Oaklee	75
36	Oden	74
37	Obed	72
38	Octavius	72
39	Omer	70
40	Oswald	67
41	Olsen	66
42	Om	66
43	Oaklen	62
44	Orrin	62
45	Oak	59
46	Osmar	59
47	Oakes	56
48	Oshea	54
49	Osiah	54
50	Olivier	52
51	Omarion	52
52	Octavian	51
53	Othniel	47
54	Ojas	46
55	Odysseus	44
56	Oaks	43
57	Osias	43
58	Oswaldo	41
59	Oseias	40
60	Owais	40
61	Oumar	38
62	Oryan	36
63	Othman	34
64	Olen	33
65	Oz	33
66	Omri	32
67	Ousmane	31
68	Ollivander	30
69	Olson	30
70	Obi	29
71	Opie	29
72	Omega	27
73	Oaklan	25
74	Olliver	24
75	Oriel	24
76	Oseas	24
77	Ovidio	24
78	Oaklyn	23
79	Odell	23
80	Oleander	23
81	Omid	23
82	Ostin	23
83	Oisin	22
84	Onix	22
85	Orlin	22
86	Osborne	22
87	Ole	21
88	Olvin	21
89	Omir	21
90	Oaken	20
91	Odyn	20
92	Oran	19
93	Olivander	18
94	Osama	18
95	Obaida	17
96	Oberon	17
97	Ociel	17
98	Octavious	17
99	Odie	17
100	Onyxx	17

Also

Girl names starting with O

Other letters

Source: U.S.A. Social Security Administration. Years 1880-2025. Names given to fewer than five babies in a year are withheld at source. namelegacy.org