| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1881 | On | Biblical | Pain, force, iniquity | M | |
| 1882 | Onam | Biblical | Pain, force, iniquity | M | |
| 1883 | Onan | Biblical | Pain, force, iniquity | M | |
| 1884 | Onesimus | Biblical | Profitable, useful. | M | |
| 1885 | Onesiphorus | Biblical | Who brings profit. | M | |
| 1886 | Ono | Biblical | Grief or strength or iniquity of him. | M | |
| 1887 | Ophel | Biblical | A tower, darkness, small white cloud. | M | |
| 1888 | Ophir | Biblical | Fruitful region. | M | |
| 1889 | Ophni | Biblical | Wearisomeness, folding together. | M | |
| 1890 | Ophrah | Biblical | Dust, lead, a fawn. | M | |
| 1891 | Oreb | Biblical | A raven. | M | |
| 1892 | Ornan | Biblical | That rejoices. | M | |
| 1893 | Oshea | Biblical | A savior; a deliverer | M | |
| 1894 | Othni | Biblical | My time, my hour. | M | |
| 1895 | Othniel | Biblical | The hour of God | M | |
| 1896 | Ozem | Biblical | That fasts, their eagerness. | M | |
| 1897 | Ozias | Biblical | Strength from the Lord | M | |
| 1898 | Ozni | Biblical | An ear, my hearkening. | M | |
| 1899 | Paarai | Biblical | Opening. | M | |
| 1900 | Padan-aram | Biblical | Cultivated field or table-land. | M | |