| Dotan | A name meaning law or custom. |
| Dothan | The law, custom. |
| Dotta | From the Old Danish language, commonly thought to mean daughter. |
| Dottie | Variant of the Greek Dorothy meaning Gift of God. |
| Dottir | From the Old Danish language, commonly thought to mean daughter. |
| Dotty | A name meaning gift of the Lord. |
| Douce | A name meaning sweet or gentle. |
| Doug | Derived from douglas |
| Dougal | Dweller by the dark stream |
| Dougald | Variant of Dougal: Dark-skinned stranger. |
| Dougall | Variant of Dougal: Dark-skinned stranger. |
| Dougan | Variant of Dugan: Swarthy. |
| Douggan | Variant of Dugan: Swarthy. |
| Doughal | A variant of the name meaning dark stranger. |
| Doughall | A Scottish name meaning dark stranger. |
| Dougherty | Variant of Doherty: Wicked. |
| Doughlas | Dwells by the dark stream |
| Dougie | Diminutive of Douglas: Dark water. In the seventeenth century, this name was as popular for girls as for boys. |
| Douglas | Dwells by the dark stream; Dweller by the dark stream; Dark water. In the seventeenth century, this name was as popular for girls as for boys.; Dark stranger; From the dark river. The Scottish Douglas clan had two historical branches: (Black Douglases and |
| Douglass | Derived from douglas |
| Doune | From the down hill |
| Dounya | An Arabic name meaning the whole world. |
| Dour | A name meaning stern or unyielding. |
| Dousik | A name meaning sweet or pleasant one. |
| Dov | A Hebrew name meaning a brave bear. |
| Dova | A Hebrew name meaning a female bear. |
| Dove | A name meaning a peaceful bird symbol. |
| Dover | Water. A British seaport on the English channel. |
| Dovev | Speaks in a whisper |
| Dovi | A Hebrew name meaning a little bear. |
| Dovidas | A Lithuanian name meaning beloved bear. |
| Dow | A name meaning a dove or bird. |
| Dowan | A name meaning a darkhaired one. |
| Dowanhowee | A name meaning wind that blows. |
| Dowle | A name meaning a small valley. |
| Downeti | A name meaning a quiet spirit. |
| Downett | A name meaning a little hill. |
| Doy | A name meaning a joyful person. |
| Doyal | A name meaning a royal leader. |
| Doyel | A name meaning a bright light. |