200 Baby Boy Names That Start With O

It’s what some might call the most exciting time in your life – you’re expecting a baby! The feelings you have are probably all over the place by now, which is entirely normal. Excited for what’s to come but nervous at the same time – it can be hard to keep all of those emotions in check when it comes to making the big decisions you’ll need to make throughout your pregnancy. One of those big decisions you’ll have to make is what name you’re going to choose, and how exciting is that? If you’re expecting a son and looking for O names for boys, then you’ve come to the right place. We’ve compiled a list of boy names that start with O.

There are so many names out there that it can very easily become overwhelming when you’re trying to pinpoint which one you want to go with. Google searches can be redundant, and it might feel like you might never find “the one,” but we’re here to help. We’ve compiled a list of some of the best baby boy names that start with O!

Baby Boy Names That Start With O

Celebrity Boy Names That Start With O

  • Ode – child of Jena Malone and Ethan DeLorenzo
  • Odie – child of Ashley Williams
  • Odin – child of Nick Carter and Lauren Kitt Carter
  • Olaf – child of Crown Princess Victoria and Prince Daniel of Sweden
  • Olive – child of Isla Fisher and Sacha Baron Cohen
  • Oliver – child of Fred Savage
  • Olympia – child of Kasi Bennett and Usain Bolt
  • Onyx – child of Iggy Azalea and Playboi Carti
  • Oonagh – child of Amber Heard
  • Orion – child of Chris Noth
  • Orrin – child of Josh Homme and Brody Dalle
  • Orson – child of Lauren Ambrose
  • Oscar – child of Gordon Ramsey
  • Osian – child of Milla Jovovich and Paul W.S. Anderson
  • Oskar – child of Nate Berkus and Jeremiah Brent
  • Otis – child of Olivia Wilde and Jason Sudeikis
  • Otto – child of Rachael Harris
  • Owen-Lee – child of Shiri Appleby and Jon Shook
  • Ozzie – child of Max Greenfield
  • Read here for more celebrity baby names

More Boy Names That Start With O

  1. O’Brien
  2. O’Keefe
  3. O’Shay
  4. Oak
  5. Oakes
  6. Oaklee
  7. Oakleigh
  8. Oakley
  9. Oaks
  10. Obadiah
  11. Obafemi
  12. Obama
  13. Obasi
  14. Obed
  15. Obediah
  16. Oberon
  17. Obert
  18. Obi
  19. Obie
  20. Ocia
  21. Octave
  22. Octave
  23. Octavian
  24. Octavio
  25. Octavious
  26. Octavius
  27. Octavus
  28. Oden
  29. Odell
  30. Odhran
  31. Odile
  32. Odilon
  33. Odis
  34. Odon
  35. Odysseus
  36. Ofir
  37. Ogden
  38. Ohad
  39. Ohene
  40. Oisin
  41. Okechukwu
  42. Okeke
  43. Okpara
  44. Ola
  45. Olatokunbo
  46. Olatunde
  47. Olav
  48. Olavi
  49. Olbert
  50. Ole
  51. Oleg
  52. Oleksiy
  53. Olen
  54. Olexa
  55. Olin
  56. Olindo
  57. Oliverio
  58. Olivier
  59. Olivio
  60. Olle
  61. Ollie
  62. Olliver
  63. Olof
  64. Olsen
  65. Olufemi
  66. Olujimi
  67. Olukayode
  68. Olumide
  69. Olusegun
  70. Olushola
  71. Olutosin
  72. Oluwatobi
  73. Oluyemi
  74. Olyn
  75. Omar
  76. Omario
  77. Omer
  78. Omero
  79. Omid
  80. Omotunde
  81. Omri
  82. Ona’je
  83. Ondray
  84. Ondre
  85. Ondrej
  86. Oneal
  87. Oneil
  88. Onesimo
  89. Onofre
  90. Onofrio
  91. Onorio
  92. Onslow
  93. Ophir
  94. Or
  95. Ora
  96. Oran
  97. Orazio
  98. Ordell
  99. Orel
  100. Oren
  101. Orenthal
  102. Oreste
  103. Orestes
  104. Orie
  105. Orin
  106. Orland
  107. Orlando
  108. Orley
  109. Orlin
  110. Orlondo
  111. Orman
  112. Ormand
  113. Ormando
  114. Ormond
  115. Oron
  116. Orpheus
  117. Orphie
  118. Orran
  119. Orrel
  120. Orren
  121. Orrie
  122. Orry
  123. Orsen
  124. Ortiz
  125. Orton
  126. Orval
  127. Orvalle
  128. Orvell
  129. Orvil
  130. Orville
  131. Orvin
  132. Orwin
  133. Oryon
  134. Osama
  135. Osbert
  136. Osborne
  137. Osbourne
  138. Osburn
  139. Osei
  140. Osgood
  141. Oshea
  142. Osher
  143. Osiris
  144. Osker
  145. Osman
  146. Osmar
  147. Osmin
  148. Osmund
  149. Osric
  150. Ossian
  151. Ossie
  152. Osten
  153. Ostin
  154. Ostyn
  155. Osvaldo
  156. Osvin
  157. Oswald
  158. Oswaldo
  159. Oswell
  160. Oswin
  161. Oswyn
  162. Ota
  163. Otello
  164. Otha
  165. Othello
  166. Othman
  167. Othmar
  168. Othniel
  169. Otho
  170. Otniel
  171. Ottavio
  172. Oved
  173. Overton
  174. Ovid
  175. Ovie
  176. Owain
  177. Owens
  178. Owin
  179. Owynn
  180. Oz
  181. Ozwald

What’s your favorite (or least favorite) name from this list? Have you or your friends and family chosen any of these boy names that start with O for their sons? It’s hard to believe that the happiest time of your life can also be one of the most stressful, but try your best to enjoy the journey you’re on to meeting your bundle of joy.

Be sure also to take a peek at some of our other baby name lists, like our top baby names for 2022, unique and trendy boy names, and the coolest boy names. Have fun choosing a beautiful name you love for your baby boy!

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