Search boys Baby Names starting with letter O
| # | Name | Origin | Meaning | Gender | Save |
| 101 | Ohitekah | NativeAmerican | Brave (Sioux). | M |  |
| 102 | Oidhche | Scottish | Night. | M | |
| 103 | Oighrig | Greek | Well spoken. | M | |
| 104 | Oilibhear | Norse | Relic. | M | |
| 105 | Oistin | Latin | Revered. | M | |
| 106 | Okes | English | From the oak. | M | |
| 107 | Okhmhaka | NativeAmerican | Little wolf (Cheyenne). | M | |
| 108 | Okpara | Egyptian | First born. | M | |
| 109 | Ol | Welsh | Legendary son of Olwydd. | M | |
| 110 | Ola | Norse | Relic. | M | |
| 111 | Olaf | Danish | Family. | M | |
| 112 | Olaf | Norse | Relic; ancestral heritage. St. Olaf is the patron saint of Norway, and there were many kings in Scandinavia named Olaf. | M | |
| 113 | Olaf | Scandinavian | Ancestral heritage. | M | |
| 114 | Olaf | Swedish | Andent. | M | |
| 115 | Olaf | Teutonic | Relic. | M | |
| 116 | Olav | Norse | Variant of Olaf: Relic; ancestral heritage. | M | |
| 117 | Olave | Norse | Variant of Olaf: Relic; ancestral heritage. | M | |
| 118 | Ole | Danish | Family. | M | |
| 119 | Ole | Norse | Relic. | M | |
| 120 | Oleg | Russian | Holy. | M | |
| 121 | Oleif | Norse | Relic descendant. | M | |
| 122 | Olen | Norse | Relic. | M | |
| 123 | OLes | Polish | Polish form of Alexander 'defends mankind'. | M | |
| 124 | Oles | Greek | Defender of man. | M | |
| 125 | Olezka | Russian | Holy. | M | |
| 126 | Olin | Norse | Relic. | M | |
| 127 | Oliphant | Scottish | Great strength. | M | |
| 128 | Oliver | English | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. 'Extending an olive branch' signifies an offer of peace. | M | |
| 129 | Oliver | French | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace. | M | |
| 130 | Oliver | German | Elf army. Can also be a variant of Olaf: Relic, ancestral heritage. | M | |
| 131 | Oliver | Latin | Olive (symbol of peace); peaceful. | M | |
| 132 | Oliver | Norse | Affectionate. | M | |
| 133 | Oliver | Shakespearean | As You Like It' Son of Sir Rowland de Boys. As You Like It' Sir Oliver Martext, a vicar. | M | |
| 134 | Oliverio | Latin | Peaceful. | M | |
| 135 | Oliverio | Spanish | Affectionate. | M | |
| 136 | Oliverios | Latin | Peaceful. | M | |
| 137 | Oliverios | Spanish | Affectionate. | M | |
| 138 | Olivier | French | From the olive tree. | M | |
| 139 | Olivier | German | Variant of Oliver: Elf army. Can also be a variant of Olaf: Relic, ancestral heritage. | M | |
| 140 | Olivier | Latin | Variant of Oliver: Olive (symbol of peace); peaceful. | M | |
| 141 | Ollaneg | English | From Olney. | M | |
| 142 | Ollie | French | Diminutive of Oliver: Olive tree. | M | |
| 143 | Ollie | German | Diminutive of Oliver: Elf army. Can also be a variant of Olaf: Relic, ancestral heritage. | M | |
| 144 | Ollie | Latin | Diminutive of Oliver: Olive (symbol of peace); peaceful. | M | |
| 145 | Olliver | Latin | Peaceful. | M | |
| 146 | Olney | English | From Olney. | M | |
| 147 | Olof | Norse | Relic. | M | |
| 148 | Olof | Swedish | Andent. | M | |
| 149 | Olvaerr | Norse | Affectionate. | M | |
| 150 | Olvan | Latin | Peaceful. | M | |