| Diamon | A variant spelling of the word diamond. |
| Dibin | Good Luck; Loveable |
| Dibric | Old English name meaning 'gift of the lord' |
| Dica | Latin name meaning 'gift of God' |
| Dicca | Latin name meaning 'gift of God' or 'divine gift' |
| Diccel | Latin name meaning 'gift of God' or 'divine gift' |
| Diccin | Latin name meaning 'gift of God' or 'divine gift' |
| Dicken | Powerful; Peaceful Ruler |
| Dickenson | English surname meaning 'son of Richard' |
| Didimus | Latin name meaning 'we have given' |
| Digoth | Old English name meaning 'battle' or 'warrior' |
| Dikk | Old English name meaning 'battle' or 'warrior' |
| Dimond | A variant spelling of the word diamond. |
| Dinias | Welsh name meaning 'lord' or 'master' |
| Dinny | A diminutive form of Dennis. |
| Dinogad | Welsh name meaning 'great lord' or 'great master' |
| Dionisius | Derived from Greek, meaning 'belonging to Dionysus,' the god of wine and fertility. |
| Dionites | Possibly derived from Greek, meaning 'followers of Dionysus' or 'wine drinkers.' |
| Diricus | Latinized form of 'Doricus,' meaning 'from Doris' or 'relating to Doris.' |
| Dissaith | Possibly derived from Welsh, meaning 'second' or 'next in order.' |
| Diuaret | Derived from Latin, meaning 'to give life' or 'to revive.' |
| Diuin | Derived from Latin, meaning 'divine' or 'relating to the gods.' |
| Dixan | Peaceful Ruler; Son of Richard |
| Doan | A name meaning chief or head. |
| Dobagnus | Possibly derived from Old English, meaning 'good battle' or 'good fight.' |
| Dobbins | Derived from Old English, meaning 'son of Robert' or 'descendant of Robert.' |
| Dobitvci | Possibly derived from Old English, meaning 'good battle' or 'good fight.' |
| Dobson | Derived from Old English, meaning 'son of Robert' or 'descendant of Robert.' |
| Dobyn | Possibly derived from Old English, meaning 'good battle' or 'good fight.' |
| Docc | Derived from Old English, meaning 'two' or 'second.' |
| Docunni | Possibly derived from Old English, meaning 'two sons' or 'second-born.' |
| Dod | Derived from Old English, meaning 'fox' or 'clever.' |
| Dodda | Possibly derived from Old English, meaning 'fox' or 'clever.' |
| Dodinas | Derived from Old English, meaning 'fox-like' or 'clever.' |
| Dodinc | Possibly derived from Old English, meaning 'fox-like' or 'clever.' |
| Dodynel | Derived from Old English, meaning 'fox-like' or 'clever.' |
| Dofngarth | Possibly derived from Old English, meaning 'good battle' or 'good fight.' |
| Dofran | Derived from Old English, meaning 'good battle' or 'good fight.' |
| Dogod | One who serves the divine. |
| Domgeat | A guardian of the gateway. |