Selected Mottoes (with Translations): "D" Surnames
| Family Name | Original Language (Usually Latin or Old French) | English Translation (if needed) |
| Dale | Spectemur agendo | Let us be judged by our actions |
| Dalrymple | -- | Be firm |
| Dalton | -- | God is my defender |
| Dalton | Tristus et fidelis | Sad and faithful |
| Daly | Deo fidelis et patria | Faithful to God and country |
| Dalyell | -- | I dare |
| Dalyell | -- | Right and reason |
| Dalzell | -- | I dare |
| Dancer | Vincit qui patitur | The one who is patient wins |
| Daniel | Toujours pret | Always ready |
| Daniell | Pro fide et patria | For faith and country |
| Darbishire | Ubi amor ibi fides | Where there is love, there is faith |
| Darby | Spero meliora | I hope for better things |
| Darcy | Un Dieu un roi | On God one king |
| Darely | -- | Dare |
| Darley | Per mare per terras | By land and sea |
| Dargan | Pro Deo et patria | For God and country |
| Darlington | Cruce dum spero fido | While I breath I hope |
| Darroch | -- | Be watchful |
| Dauglish | -- | Be hardy |
| Davenport | -- | Fear God, honor the King |
| Davies | Esse quam videri | To be, rather than to seem |
| Davies | Heb Dduw heb ddin a Duw a digon | Without God, without anything, God is enough |
| Davies | Sic itir ad astra | This is the way of the stars |
| Davis | -- | I will |
| Davis | Virtute et fidelitate | By valour and fidelity |
| Davoran | Nunquam non paratus | Never unprepared |
| Davys | -- | Forget not |
| Dawes | -- | Fear not |
| Dawson | Manus hoec inimica tyrannis | This hand is hostile to tyrants |
| Dawson | Perseverando | By perservering |
| Dawson | Toujours propice | Always propitious |
| Dawson | Virtute non verbis | Deeds not words |
| Day | Sic itir ad astra | This is the way of the stars |
| Dayman | Toujours prest | Always nimble |
| O'Dea | Sic itir ad astra | This is the way of the stars |
| Deacon | In utrumque paratus | Prepared for both |
| Deakin | Fidelitas vincit | Faithfulness conquers |
| Deane | Aarte vel marte | By art, or by work |
| Deane | Forti et fideli nihil difficle | To the brave and faithful man nothing is difficult |
| Deane | Fortiter et fideliter | Boldly and faithfully |
| Dease | Toujours pret | Always ready |
| Deasy | Toujours pret | Always ready |
| Delacourt | Fortis et fidelis | Brave and faithful |
| Delaney | Depressus tamen extollor | -- |
| Delap | Merito | With merit |
| Deline | Esse quam videri | To be, rather than to seem |
| Dempsey | Elatium a Deo non deprimat | Upheld by God I am not depressed |
| Dennehy | Labore et honore | Labour with honour |
| Dennis | Dieu a la mer | God is the sea |
| Desmond | Virtutis praemium honore | Honour is the reward of virtue |
| Devaney | Non sibi solum | Not alone for oneself |
| Deveroux | Bassis virtutum constantia | Constancy is the foundation of all virtue |
| Devlin | Crux me stella | The cross is my star |
| Dewhurst | Spec mea in Deo | God is my hope |
| Diamond | Miseris succurrere disco | I learn to succour the unfortunate |
| Dicey | Fide et amore | Faith and love |
| Dick | Semper fidelis | Always faithful |
| Dick | Virtute | By virtue |
| Dickin | Vincit veritas | Truth conquers |
| Dickins | Semper fidelis | Always faithful |
| Dickson | Cubo sed curo | I rest but care |
| Dickson | Fortes fortuna juvat | Fortune favours the bold |
| Dillon | Dum spiro spero | While I breath I hope |
| Dinneen | Toujours pret | Always ready |
| Dirom | -- | Be sure |
| Disney | Vincit qui patitur | The one who is patient wins |
| Dixon | -- | Peace |
| Dixon | Cubo sed curo | I rest but care |
| Dixon | Fortes fortuna juvat | Fortune favours the bold |
| Dobbin | Re et merito | By reality and merit |
| Dockrell | Semper eadem | Always the same |
| Dodd | In copia cautus | Careful and plenty |
| Dolan | Virtute et fidelis | By faith and virtue |
| Dolling | Spero | I hope |
| Domenichetti | Nunquam non paratus | Never unprepared |
| Donaldson | -- | My hope is constant |
| Donaldson | Si Deus vobiscum qui contra nos | If God be with us, who can be against us |
| O'Donavan | Vir super hostem | A man above an enemy |
| Donegan | Virtus non vertitur | Virtue does not turn |
| Donelan | Omni violentia major | Greater than all violence |
| Donkin | Disce pati | Learn to endure |
| Donlevy | Merito | With merit |
| O'Donnell | In hoc signo vinces | Under this sign you shall conquer |
| Donnelly | Lamh dearg Eiren | The red hand of Ireland |
| Donnellan | Omni violentia major | Greater than all violence |
| Donoghue | Nunquam non paratus | Never unprepared |
| O' Donovan | Crom a boo | Crom defying |
| Donovan | Giolla ar a'namuid abu | A youth over his enemies defying |
| Doolan | Fortis et egregius | Brave and distinguished |
| Dooley | Fortes fortuna juvat | Fortune favours the bold |
| Doran | Spec anchora vitae | Hope is the anchor of life |
| Douglas | -- | Do or die |
| Douglas | -- | Forward |
| Douglas | -- | God for us |
| Douglas | -- | Lock sicker |
| Douglas | Fortis et fidelis | Brave and faithful |
| Douglas | Gluaiseact ar agaid | Forward motion |
| Douglas | Pro patria | For my country |
| Douglas | Spero | I hope |
| Douglas | Sursum | Upwards |
| O'Dowd | Virtus ipsa suis firmissima nititur armis | Bravery is best sustained by arms |
| Dowdal | Fidelis usque ad mortem | Faithful even to death |
| Dowine | -- | Hold fast |
| Dowling | Fortis et egregius | Brave and distinguished |
| Downfield | Virtute et labore | By valour and exertion |
| Downes | Parle bien ou parle rien | Speak well or say nothing |
| Downey | Lamh laidir in uactar | The strong hand uppermost |
| Doyle | Fortitudine vincit | He conquers by fortitude |
| Doyne | Mullach a boo | Victory for the Duns, or the inhabitants of the hills = |
| Drake | -- | The eagle does not catch flies |
| Drew | Drogo nomen et virtus arm dedid | Drogo is my name, and valour gave me arms |
| Drinkwater | Ne quid nimis | Nothing too much |
| Drummond | -- | Gang warily |
| Drummond | -- | Have it all |
| Drummond | -- | Lord have mercy |
| Drummond | Consequiter quodcunque petit | He obtains whatever he seeks |
| Drummond | Dominus providebit | God will provide |
| Drummond | Dum spiro spero | While I breath I hope |
| Drummond | Loyal aut mort | Loyal to the death |
| Drummond | Per mare per terras | By land and sea |
| Drumson | Spectemur agendo | Let us be judged by our actions |
| Duckett | Spectemur agendo | Let us be judged by our actions |
| Dudgeon | -- | With heart and hand |
| Duff | -- | Be true and ye shall never rue |
| Duff | -- | Kind heart |
| Duff | Deus juvat | God assists |
| Duffield | Semper fidelis | Always faithful |
| Duffy | Deo patria amicis | To God, country and friends |
| Duggan | Virtute et valore | By virtue and valour |
| Duignan | Historia magistra vitae | Virtue in history |
| Duke | Gradatum vincimus | We conquer by degrees |
| Dukinfield | Ubi amor ibi fides | Where there is love, there is faith |
| Dunbar | Disce pati | Learn to endure |
| Duncan | Dise pati | Learn to endure |
| Duncan | Perseverando | By perservering |
| Duncombe | Deo, regi, patriae | God, king, country |
| Dundas | -- | Live to live |
| Dunlop | Merito | With merit |
| Dunne | Mullac abu | Victory to the chief |
| Dunphy | Generosa virtus nihil timet | Generous valour fears nothing |
| Dunscombe | Fidelitas vincit | Faithfulness conquers |
| Dupuis | -- | Persevere |
| Durham | Per mare per terras | By land and sea |
| Durkin | Virtue et claritate | By virtue and high repute |
| Dwyer | Virtus sola nobilitas | Virtue is the only nobility |
| Sources: Fairbairn's Book of Crests of the Families of Great Britain and Ireland (1993, Baltimore: Genealogical Publishing Co, Inc.) and The General Armory of England, Scotland, Ireland, and Wales by Sir Bernard Burke (1996, Heritage Books: Bowie MD) | ||
