200 Boy Names Starting with O

200 NamesLetter OCoolFor Boys

Searching for baby boy names starting with O? This list has 200 beautiful options — from timeless classics to modern picks. Tap any name to copy it instantly.

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1 Osip
2 Ourias
3 Óskar
4 Ouri
5 Ovidiu
6 Origenes
7 Olof
8 Olympiodoros
9 Olumide
10 Oier
11 Octávio
12 Osbourne
13 Oluf
14 Oiva
15 Ólavur
16 Oral
17 Osman
18 Osmond
19 Onnophris
20 Oluwaseun
21 Othmar
22 Oluwatoyin
23 Osbeorn
24 Obed
25 Olufemi
26 Ottavio
27 Orfeo
28 Ormazd
29 Oszkár
30 Oghenekevwe
31 Ogden
32 Otho
33 Ognjan
34 Olabode
35 Osborn
36 Onesimos
37 Orson
38 Øystein
39 Özgür
40 Odran
41 Olev
42 Oceanus
43 Octave
44 Ozias
45 Ortzi
46 Odd
47 Onouphrios
48 Onfroi
49 Oedipus
50 Odalric
51 Onofre
52 Ohannes
53 Ollie
54 Ofer
55 Onisimu
56 Oldřich
57 Ottorino
58 Oidipous
59 Ottone
60 Olanrewaju
61 Orsino
62 Oleksander
63 Ophiuchus
64 Onur
65 Oswin
66 Osborne
67 Odysseus
68 Ottaviano
69 Osberht
70 Oshea
71 Odovacar
72 Olukayode
73 Ožbej
74 Oliwer
75 Onyekachukwu
76 Olympos
77 Osvaldo
78 Oved
79 Onesiphoros
80 Oren
81 Ottomar
82 Oziel
83 Ophir
84 Oluwafemi
85 Otokar
86 Onesimus
87 Oghenekaro
88 Ohad
89 Orion
90 Oliviero
91 Othniel
92 Orestes
93 Otgonbayar
94 Odoacer
95 Olek
96 Ovadia
97 Ochieng
98 Ode
99 Ozzy
100 Öztürk
101 Om
102 Osheen
103 Olle
104 Olaf
105 Oswine
106 Omri
107 Ottokar
108 Oleg
109 Oluwakanyinsola
110 Ödön
111 Otis
112 Ovadyah
113 Ørjan
114 Orrell
115 Opeyemi
116 Oded
117 Oberon
118 Olavi
119 Osgar
120 Oddr
121 Olexiy
122 Olav
123 Ozi
124 Oli
125 Odin
126 Omiros
127 Omer
128 Orvar
129 Orhan
130 Ožbalt
131 Ole
132 Oles
133 Ophrah
134 Onesiphorus
135 Ofydd
136 Ourbanos
137 Obadiah
138 Ottmar
139 Orel
140 Ólafur
141 Otakar
142 Olov
143 Olegário
144 Ovídio
145 Onuphrius
146 Osmund
147 Oskars
148 Olufunke
149 Oleksiy
150 Odell
151 Ocean
152 Ofir
153 Osamu
154 Omega
155 Otso
156 Otieno
157 Oyibo
158 Oisín
159 Orville
160 Orbán
161 Ondřej
162 Otmar
163 Oran
164 Ognen
165 Ozzie
166 Ortwin
167 Osbert
168 Oden
169 Óscar
170 Ozihel
171 Origen
172 Odilo
173 Onisim
174 Osee
175 Ödi
176 Ognian
177 Oluchi
178 Ognjen
179 Olujimi
180 Ove
181 Orval
182 Øivind
183 Okeanos
184 Ofrah
185 Ozazias
186 Oroitz
187 Oliwier
188 Osiris
189 Oddo
190 Orazio
191 Obi
192 Ovidius
193 Óengus
194 Øyvind
195 Olavo
196 Odhiambo
197 Olamide
198 Orrin
199 Octavius
200 Octavianus
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Frequently Asked Questions

What are good names starting with O?

This page lists 200 names beginning with the letter O — a mix of timeless classics and fresh modern picks. Tap any name to copy it.

Why do parents choose names by letter?

Many families want names that match siblings, honor a relative initial, or simply love how a letter sounds. Picking a letter first narrows thousands of options into a manageable shortlist.

Are these names popular or rare?

Both. The list blends well-known favorites with uncommon finds, so you can go familiar or stand out — your call.

Can I use these names for characters or pets?

Yes. Letter lists are a favorite trick of authors and game masters for keeping character names consistent and memorable.

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