- Damon
- Davidson, Donald
- DeLanda, Manuel
- Deleuze, Gilles
- Democritus
- Dennett, Daniel
- Derrida, Jacques
- Descartes, René
- Desgabets, Robert
- Dewey, John
- Diderot, Denis
- Digby, Kenelm
- Diogenes of Apollonia
- Diogenes of Sinope
- Diotima of Mantinea
- Donoso Cortés, Juan
- Ducasse, Curt
- Dufourmantelle, Anne
- Duhem, Pierre
- Dummett, Michael
- Durkheim, Émile
- Dworkin, Ronald
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